diff --git a/Cargo.toml b/Cargo.toml
index 432626d..eb77998 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,12 +1,12 @@
 # file: Cargo.toml
-# version: 293
+# version: 294
 
 [workspace]
 resolver = "3"
 members = ["crates/ksp-app-config-desk", "crates/ksp-app-solprices-desk", "crates/ksp-app-wallet-desk", "crates/ksp-config-lib", "crates/ksp-core-lib", "crates/ksp-logging-lib", "crates/ksp-offchain-transport-lib", "crates/ksp-onchain-transport-lib", "crates/ksp-wallet-lib"]
 
 [workspace.package]
-version = "0.2.12-pre.6"
+version = "0.2.12-pre.7"
 edition = "2024"
 license = "MIT"
 repository = "https://git.sasedev.com/Sasedev/khadhroony-solana-project"
diff --git a/crates/ksp-app-solprices-desk/frontend/main.html b/crates/ksp-app-solprices-desk/frontend/main.html
index 36332b9..2afe70e 100644
--- a/crates/ksp-app-solprices-desk/frontend/main.html
+++ b/crates/ksp-app-solprices-desk/frontend/main.html
@@ -1,5 +1,5 @@
 <!-- file: crates/ksp-app-solprices-desk/frontend/main.html -->
-<!-- version: 7 -->
+<!-- version: 8 -->
 <!DOCTYPE html>
 <html lang="fr">
 
@@ -44,13 +44,16 @@
                         <div class="card app-shell-card mx-auto shadow-sm border-0">
                             <div class="card-body p-4">
                                 <section data-view-panel="prices">
-                                    <div class="d-flex align-items-start justify-content-between gap-3 flex-wrap mb-4">
+                                    <div class="d-flex align-items-start justify-content-between gap-3 flex-wrap mb-3">
                                         <div>
                                             <h1 class="h3 mb-1">Prices</h1>
-                                            <p class="text-body-secondary mb-0">Inventaire provider-neutral du registry Off-chain. Rafraîchissement individuel, sélectionné ou global, sans polling ni fallback automatique.</p>
+                                            <p class="text-body-secondary mb-0">Inventaire provider-neutral SOL/USD. Les observations restent distinctes : aucune moyenne, aucun fallback automatique et aucun polling.</p>
                                         </div>
-                                        <div class="d-flex align-items-center gap-2 flex-wrap">
-                                            <span id="selectedProviderCount" class="small text-body-secondary">0 selected</span>
+                                        <div class="d-flex align-items-center gap-2 flex-wrap app-market-toolbar">
+                                            <span id="selectedProviderCount" class="small text-body-secondary" aria-live="polite">0 selected</span>
+                                            <button id="clearSelectionButton" class="btn btn-sm btn-outline-secondary" type="button" disabled>
+                                                <i class="fa-solid fa-xmark me-1" aria-hidden="true"></i>Clear selection
+                                            </button>
                                             <button id="refreshSelectedButton" class="btn btn-sm btn-outline-primary" type="button" disabled>
                                                 <i class="fa-solid fa-list-check me-1" aria-hidden="true"></i>Refresh selected
                                             </button>
@@ -59,6 +62,40 @@
                                             </button>
                                         </div>
                                     </div>
+
+                                    <div id="pricesSummary" class="row g-2 mb-3" aria-label="Résumé des providers">
+                                        <div class="col-6 col-lg">
+                                            <div class="app-market-summary-card">
+                                                <span class="app-market-summary-label">Providers</span>
+                                                <strong id="pricesSummaryProviders">0</strong>
+                                            </div>
+                                        </div>
+                                        <div class="col-6 col-lg">
+                                            <div class="app-market-summary-card">
+                                                <span class="app-market-summary-label">Ready</span>
+                                                <strong id="pricesSummaryReady">0</strong>
+                                            </div>
+                                        </div>
+                                        <div class="col-6 col-lg">
+                                            <div class="app-market-summary-card">
+                                                <span class="app-market-summary-label">Observed</span>
+                                                <strong id="pricesSummaryObserved">0</strong>
+                                            </div>
+                                        </div>
+                                        <div class="col-6 col-lg">
+                                            <div class="app-market-summary-card">
+                                                <span class="app-market-summary-label">Attention</span>
+                                                <strong id="pricesSummaryAttention">0</strong>
+                                            </div>
+                                        </div>
+                                        <div class="col-12 col-lg">
+                                            <div class="app-market-summary-card">
+                                                <span class="app-market-summary-label">Refreshing</span>
+                                                <strong id="pricesSummaryLoading">0</strong>
+                                            </div>
+                                        </div>
+                                    </div>
+
                                     <div id="pricesLoading" class="app-placeholder">
                                         <div>
                                             <i class="fa-solid fa-spinner fa-spin text-body-secondary mb-3" aria-hidden="true"></i>
@@ -73,22 +110,24 @@
                                             <p class="text-body-secondary mb-0">Le runtime Off-chain ne contient actuellement aucune ligne provider.</p>
                                         </div>
                                     </div>
-                                    <div id="pricesDiagnostic" class="alert alert-warning mb-3" hidden></div>
-                                    <div id="pricesTableContainer" class="table-responsive" hidden>
-                                        <table id="marketPriceTable" class="table table-hover align-middle mb-0">
+                                    <div id="pricesDiagnostic" class="alert alert-warning mb-3" role="status" aria-live="polite" hidden></div>
+                                    <div id="pricesTableContainer" class="table-responsive app-market-table-container" hidden>
+                                        <table id="marketPriceTable" class="table table-hover align-middle mb-0 app-market-table">
+                                            <caption class="visually-hidden">Providers SOL/USD, disponibilité, prix exacts, fraîcheur et actions de refresh.</caption>
                                             <thead>
                                                 <tr>
-                                                    <th scope="col"><span class="visually-hidden">Select</span></th>
+                                                    <th scope="col" class="app-market-selection-column">
+                                                        <input id="selectAllProviders" class="form-check-input" type="checkbox" aria-label="Select all providers" disabled>
+                                                    </th>
                                                     <th scope="col">Provider</th>
                                                     <th scope="col">Pair</th>
-                                                    <th scope="col">Semantics</th>
-                                                    <th scope="col">Auth</th>
+                                                    <th scope="col" class="d-none d-xl-table-cell">Semantics</th>
+                                                    <th scope="col" class="d-none d-xl-table-cell">Auth</th>
                                                     <th scope="col">Availability</th>
                                                     <th scope="col">Exact price</th>
-                                                    <th scope="col">Provider timestamp (ms)</th>
-                                                    <th scope="col">Received at (ms)</th>
-                                                    <th scope="col">Retry at (ms)</th>
-                                                    <th scope="col">Action</th>
+                                                    <th scope="col" class="app-market-time-column">Observation times</th>
+                                                    <th scope="col" class="app-market-time-column">Retry</th>
+                                                    <th scope="col" class="text-end">Action</th>
                                                 </tr>
                                             </thead>
                                             <tbody id="marketPriceRows"></tbody>
@@ -127,7 +166,7 @@
                                                 <dt class="col-sm-5">Fallback Logging</dt>
                                                 <dd id="runtimeLoggingFallback" class="col-sm-7">—</dd>
                                             </dl>
-                                            <div id="runtimeDiagnostic" class="alert alert-warning mt-3 mb-0" hidden></div>
+                                            <div id="runtimeDiagnostic" class="alert alert-warning mt-3 mb-0" role="status" aria-live="polite" hidden></div>
                                         </div>
                                     </div>
                                 </section>
diff --git a/crates/ksp-app-solprices-desk/frontend/sass/_app.scss b/crates/ksp-app-solprices-desk/frontend/sass/_app.scss
index 7fa97cd..bfadbe0 100644
--- a/crates/ksp-app-solprices-desk/frontend/sass/_app.scss
+++ b/crates/ksp-app-solprices-desk/frontend/sass/_app.scss
@@ -1,5 +1,5 @@
 // file: crates/ksp-app-solprices-desk/frontend/sass/_app.scss
-// version: 3
+// version: 4
 
 $app-header-height: 72px;
 $app-footer-height: 42px;
@@ -61,7 +61,10 @@ body {
     max-width: 1320px;
 }
 
-.app-runtime-list dd {
+.app-runtime-list dd,
+.app-market-code,
+.app-market-price,
+.app-market-time-exact {
     font-family: var(--bs-font-monospace);
 }
 
@@ -103,3 +106,130 @@ body {
 .app-placeholder i {
     font-size: 2.5rem;
 }
+
+.app-market-toolbar {
+    justify-content: flex-end;
+}
+
+.app-market-summary-card {
+    display: flex;
+    min-height: 58px;
+    align-items: center;
+    justify-content: space-between;
+    gap: 0.75rem;
+    padding: 0.65rem 0.8rem;
+    border: 1px solid var(--bs-border-color);
+    border-radius: var(--bs-border-radius);
+    background: var(--bs-tertiary-bg);
+}
+
+.app-market-summary-card strong {
+    min-width: 2ch;
+    font-size: 1.15rem;
+    text-align: right;
+}
+
+.app-market-summary-label {
+    color: var(--bs-secondary-color);
+    font-size: 0.8rem;
+    text-transform: uppercase;
+    letter-spacing: 0.03em;
+}
+
+.app-market-table-container {
+    max-height: min(62vh, 720px);
+    border: 1px solid var(--bs-border-color);
+    border-radius: var(--bs-border-radius);
+}
+
+.app-market-table {
+    min-width: 1080px;
+}
+
+.app-market-table thead th {
+    position: sticky;
+    top: 0;
+    z-index: 2;
+    background: var(--bs-tertiary-bg);
+    box-shadow: inset 0 -1px 0 var(--bs-border-color);
+    white-space: nowrap;
+}
+
+.app-market-table tbody tr[data-availability="ready"] {
+    --bs-table-accent-bg: rgba($success, 0.025);
+}
+
+.app-market-table tbody tr[data-availability="cooling_down"],
+.app-market-table tbody tr[data-availability="temporarily_unavailable"] {
+    --bs-table-accent-bg: rgba($warning, 0.04);
+}
+
+.app-market-table tbody tr[data-availability="authentication_unavailable"],
+.app-market-table tbody tr[data-availability="misconfigured"] {
+    --bs-table-accent-bg: rgba($danger, 0.035);
+}
+
+.app-market-selection-column {
+    width: 42px;
+    text-align: center;
+}
+
+.app-market-time-column {
+    min-width: 220px;
+}
+
+.app-market-provider-name,
+.app-market-price {
+    font-weight: 600;
+}
+
+.app-market-code,
+.app-market-time-exact {
+    color: var(--bs-secondary-color);
+    font-size: 0.75rem;
+}
+
+.app-market-price {
+    font-variant-numeric: tabular-nums;
+    white-space: nowrap;
+}
+
+.app-market-time {
+    display: grid;
+    gap: 0.25rem;
+}
+
+.app-market-time-line {
+    display: grid;
+    grid-template-columns: auto 1fr;
+    gap: 0.35rem;
+    align-items: baseline;
+}
+
+.app-market-time-label {
+    color: var(--bs-secondary-color);
+    font-size: 0.72rem;
+    font-weight: 600;
+    text-transform: uppercase;
+}
+
+.app-market-time-value {
+    min-width: 0;
+}
+
+.app-market-row-loading {
+    opacity: 0.72;
+}
+
+@media (max-width: 991.98px) {
+    .app-sidebar {
+        width: 190px;
+        min-width: 190px;
+        max-width: 190px;
+    }
+
+    .app-market-toolbar {
+        width: 100%;
+        justify-content: flex-start;
+    }
+}
diff --git a/crates/ksp-app-solprices-desk/frontend/ts/main.ts b/crates/ksp-app-solprices-desk/frontend/ts/main.ts
index b425fa2..289da5f 100644
--- a/crates/ksp-app-solprices-desk/frontend/ts/main.ts
+++ b/crates/ksp-app-solprices-desk/frontend/ts/main.ts
@@ -1,5 +1,5 @@
 // file: crates/ksp-app-solprices-desk/frontend/ts/main.ts
-// version: 6
+// version: 7
 
 import "bootstrap";
 import ResizeObserver from "resize-observer-polyfill";
@@ -17,11 +17,46 @@ installFrontendConsoleBridge("main");
 
 type ViewId = "prices" | "diagnostics";
 
+type AvailabilityPresentation = {
+    badgeClass: string;
+    iconClass: string;
+    label: string;
+};
+
 const viewTitles: Record<ViewId, string> = {
     prices: "Prices",
     diagnostics: "Diagnostics",
 };
 
+const availabilityPresentations: Record<string, AvailabilityPresentation> = {
+    authentication_unavailable: { badgeClass: "text-bg-danger", iconClass: "fa-key", label: "Authentication unavailable" },
+    cooling_down: { badgeClass: "text-bg-warning", iconClass: "fa-clock", label: "Cooling down" },
+    disabled: { badgeClass: "text-bg-secondary", iconClass: "fa-ban", label: "Disabled" },
+    misconfigured: { badgeClass: "text-bg-danger", iconClass: "fa-triangle-exclamation", label: "Misconfigured" },
+    quota_unavailable: { badgeClass: "text-bg-warning", iconClass: "fa-gauge-high", label: "Quota unavailable" },
+    ready: { badgeClass: "text-bg-success", iconClass: "fa-circle-check", label: "Ready" },
+    temporarily_unavailable: { badgeClass: "text-bg-warning", iconClass: "fa-cloud-arrow-down", label: "Temporarily unavailable" },
+    unknown: { badgeClass: "text-bg-secondary", iconClass: "fa-circle-question", label: "Unknown" },
+};
+
+const authLabels: Record<string, string> = {
+    none: "Keyless",
+    optional_api_key: "Optional API key",
+    required_api_key: "API key required",
+    unknown: "Unknown",
+};
+
+const semanticsLabels: Record<string, string> = {
+    aggregated_market: "Aggregated market",
+    dex_pair_usd: "DEX pair USD",
+    exchange_last_trade: "Exchange last trade",
+    solana_heuristic: "Solana heuristic",
+    solana_spot: "Solana spot",
+    unknown: "Unknown",
+};
+
+const jsDateMaxUnixMillis = 8_640_000_000_000_000n;
+
 let currentMarketPriceRows: MarketPriceProviderRowDto[] = [];
 const selectedProviderIds = new Set<string>();
 
@@ -59,10 +94,14 @@ function bindNavigation(): void {
     frontendTrace("main", "SOL Prices Desk navigation handlers installed");
 }
 
-function appendMarketPriceCell(row: HTMLTableRowElement, value: string): void {
+function appendMarketPriceCell(row: HTMLTableRowElement, value: string, className?: string): HTMLTableCellElement {
     const cell = document.createElement("td");
     cell.textContent = value;
+    if (className) {
+        cell.className = className;
+    }
     row.append(cell);
+    return cell;
 }
 
 function clearPricesDiagnostic(): void {
@@ -94,21 +133,49 @@ function synchronizeSelectedProviders(): void {
     }
 }
 
+function updateSummary(): void {
+    const summaryValues: Record<string, number> = {
+        pricesSummaryProviders: currentMarketPriceRows.length,
+        pricesSummaryReady: currentMarketPriceRows.filter(provider => provider.availability === "ready" && !provider.loading).length,
+        pricesSummaryObserved: currentMarketPriceRows.filter(provider => provider.refreshed).length,
+        pricesSummaryAttention: currentMarketPriceRows.filter(provider => provider.availability !== "ready").length,
+        pricesSummaryLoading: currentMarketPriceRows.filter(provider => provider.loading).length,
+    };
+    for (const [elementId, value] of Object.entries(summaryValues)) {
+        const element = document.querySelector<HTMLElement>(`#${elementId}`);
+        if (element) {
+            element.textContent = value.toString();
+        }
+    }
+}
+
 function synchronizeBatchControls(): void {
     const selectedCount = selectedProviderIdsInRowOrder().length;
+    const providerCount = currentMarketPriceRows.length;
     const anyLoading = currentMarketPriceRows.some(provider => provider.loading);
     const selectedButton = document.querySelector<HTMLButtonElement>("#refreshSelectedButton");
     const allButton = document.querySelector<HTMLButtonElement>("#refreshAllButton");
+    const clearButton = document.querySelector<HTMLButtonElement>("#clearSelectionButton");
+    const selectAll = document.querySelector<HTMLInputElement>("#selectAllProviders");
     const selectedCountLabel = document.querySelector<HTMLElement>("#selectedProviderCount");
     if (selectedButton) {
         selectedButton.disabled = selectedCount === 0 || anyLoading;
     }
     if (allButton) {
-        allButton.disabled = currentMarketPriceRows.length === 0 || anyLoading;
+        allButton.disabled = providerCount === 0 || anyLoading;
+    }
+    if (clearButton) {
+        clearButton.disabled = selectedCount === 0 || anyLoading;
+    }
+    if (selectAll) {
+        selectAll.disabled = providerCount === 0 || anyLoading;
+        selectAll.checked = providerCount !== 0 && selectedCount === providerCount;
+        selectAll.indeterminate = selectedCount > 0 && selectedCount < providerCount;
     }
     if (selectedCountLabel) {
         selectedCountLabel.textContent = `${selectedCount} selected`;
     }
+    updateSummary();
 }
 
 function markProvidersLoading(providerIds: string[]): void {
@@ -198,6 +265,7 @@ async function refreshAllMarketPrices(): Promise<void> {
 
 function appendSelectionCell(row: HTMLTableRowElement, provider: MarketPriceProviderRowDto): void {
     const cell = document.createElement("td");
+    cell.className = "app-market-selection-column";
     const checkbox = document.createElement("input");
     checkbox.type = "checkbox";
     checkbox.className = "form-check-input";
@@ -220,13 +288,152 @@ function appendSelectionCell(row: HTMLTableRowElement, provider: MarketPriceProv
     row.append(cell);
 }
 
+function appendProviderCell(row: HTMLTableRowElement, provider: MarketPriceProviderRowDto): void {
+    const cell = document.createElement("td");
+    const name = document.createElement("div");
+    name.className = "app-market-provider-name";
+    name.textContent = provider.displayName;
+    const code = document.createElement("div");
+    code.className = "app-market-code";
+    code.textContent = provider.providerId;
+    cell.append(name, code);
+    row.append(cell);
+}
+
+function appendBadgeCell(row: HTMLTableRowElement, label: string, badgeClass = "text-bg-light", className?: string): void {
+    const cell = document.createElement("td");
+    if (className) {
+        cell.className = className;
+    }
+    const badge = document.createElement("span");
+    badge.className = `badge ${badgeClass}`;
+    badge.textContent = label;
+    cell.append(badge);
+    row.append(cell);
+}
+
+function availabilityPresentation(provider: MarketPriceProviderRowDto): AvailabilityPresentation {
+    if (provider.loading) {
+        return { badgeClass: "text-bg-info", iconClass: "fa-spinner fa-spin", label: "Refreshing" };
+    }
+    return availabilityPresentations[provider.availability] ?? availabilityPresentations.unknown;
+}
+
+function appendAvailabilityCell(row: HTMLTableRowElement, provider: MarketPriceProviderRowDto): void {
+    const cell = document.createElement("td");
+    const presentation = availabilityPresentation(provider);
+    const badge = document.createElement("span");
+    badge.className = `badge ${presentation.badgeClass}`;
+    const icon = document.createElement("i");
+    icon.className = `fa-solid ${presentation.iconClass} me-1`;
+    icon.setAttribute("aria-hidden", "true");
+    badge.append(icon, document.createTextNode(presentation.label));
+    cell.append(badge);
+    row.append(cell);
+}
+
+function appendPriceCell(row: HTMLTableRowElement, provider: MarketPriceProviderRowDto): void {
+    const cell = document.createElement("td");
+    if (provider.price === null) {
+        const empty = document.createElement("span");
+        empty.className = "text-body-secondary";
+        empty.textContent = "No observation";
+        cell.append(empty);
+    } else {
+        const price = document.createElement("span");
+        price.className = "app-market-price";
+        price.textContent = provider.price;
+        const currency = document.createElement("small");
+        currency.className = "text-body-secondary ms-1";
+        currency.textContent = "USD";
+        cell.append(price, currency);
+    }
+    row.append(cell);
+}
+
+function formatUnixMillis(value: string): { exact: string; iso: string; local: string } | null {
+    try {
+        const exact = BigInt(value);
+        if (exact < -jsDateMaxUnixMillis || exact > jsDateMaxUnixMillis) {
+            return null;
+        }
+        const date = new Date(Number(exact));
+        if (Number.isNaN(date.getTime())) {
+            return null;
+        }
+        return {
+            exact: value,
+            iso: date.toISOString(),
+            local: date.toLocaleString("fr-CH", { dateStyle: "short", timeStyle: "medium", hour12: false }),
+        };
+    } catch {
+        return null;
+    }
+}
+
+function appendTimestampValue(container: HTMLElement, label: string, value: string | null, emptyLabel: string): void {
+    const line = document.createElement("div");
+    line.className = "app-market-time-line";
+    const prefix = document.createElement("span");
+    prefix.className = "app-market-time-label";
+    prefix.textContent = label;
+    const valueContainer = document.createElement("span");
+    valueContainer.className = "app-market-time-value";
+    if (value === null) {
+        valueContainer.classList.add("text-body-secondary");
+        valueContainer.textContent = emptyLabel;
+    } else {
+        const formatted = formatUnixMillis(value);
+        if (formatted === null) {
+            const exact = document.createElement("span");
+            exact.className = "app-market-time-exact";
+            exact.textContent = `${value} ms`;
+            valueContainer.append(exact);
+        } else {
+            const time = document.createElement("time");
+            time.dateTime = formatted.iso;
+            time.textContent = formatted.local;
+            time.title = formatted.iso;
+            const exact = document.createElement("span");
+            exact.className = "app-market-time-exact d-block";
+            exact.textContent = `${formatted.exact} ms`;
+            valueContainer.append(time, exact);
+        }
+    }
+    line.append(prefix, valueContainer);
+    container.append(line);
+}
+
+function appendObservationTimeCell(row: HTMLTableRowElement, provider: MarketPriceProviderRowDto): void {
+    const cell = document.createElement("td");
+    cell.className = "app-market-time-column";
+    const time = document.createElement("div");
+    time.className = "app-market-time";
+    appendTimestampValue(time, "Provider", provider.providerTimestampUnixMillis, "Not supplied");
+    appendTimestampValue(time, "KSP", provider.receivedAtUnixMillis, "—");
+    cell.append(time);
+    row.append(cell);
+}
+
+function appendRetryCell(row: HTMLTableRowElement, provider: MarketPriceProviderRowDto): void {
+    const cell = document.createElement("td");
+    cell.className = "app-market-time-column";
+    const time = document.createElement("div");
+    time.className = "app-market-time";
+    appendTimestampValue(time, "Retry", provider.retryAtUnixMillis, "—");
+    cell.append(time);
+    row.append(cell);
+}
+
 function appendRefreshCell(row: HTMLTableRowElement, provider: MarketPriceProviderRowDto): void {
     const cell = document.createElement("td");
+    cell.className = "text-end";
     const button = document.createElement("button");
     button.type = "button";
     button.className = "btn btn-sm btn-outline-primary text-nowrap";
     button.disabled = provider.loading;
     button.dataset.providerId = provider.providerId;
+    button.setAttribute("aria-label", `Refresh ${provider.displayName}`);
     button.innerHTML = provider.loading
         ? '<i class="fa-solid fa-spinner fa-spin me-1" aria-hidden="true"></i>Refreshing…'
         : '<i class="fa-solid fa-rotate me-1" aria-hidden="true"></i>Refresh';
@@ -257,34 +464,68 @@ function renderMarketPriceRows(rows: MarketPriceProviderRowDto[]): void {
     for (const provider of rows) {
         const row = document.createElement("tr");
         row.dataset.providerId = provider.providerId;
+        row.dataset.availability = provider.availability;
+        row.classList.toggle("app-market-row-loading", provider.loading);
         appendSelectionCell(row, provider);
-        appendMarketPriceCell(row, provider.displayName);
-        appendMarketPriceCell(row, provider.pair);
-        appendMarketPriceCell(row, provider.semantics);
-        appendMarketPriceCell(row, provider.authMode);
-        appendMarketPriceCell(row, provider.loading ? "loading" : provider.availability);
-        appendMarketPriceCell(row, provider.price ?? "—");
-        appendMarketPriceCell(row, provider.providerTimestampUnixMillis ?? "—");
-        appendMarketPriceCell(row, provider.receivedAtUnixMillis ?? "—");
-        appendMarketPriceCell(row, provider.retryAtUnixMillis ?? "—");
+        appendProviderCell(row, provider);
+        appendBadgeCell(row, provider.pair, "text-bg-primary");
+        appendBadgeCell(row, semanticsLabels[provider.semantics] ?? semanticsLabels.unknown, "text-bg-light", "d-none d-xl-table-cell");
+        appendBadgeCell(row, authLabels[provider.authMode] ?? authLabels.unknown, "text-bg-light", "d-none d-xl-table-cell");
+        appendAvailabilityCell(row, provider);
+        appendPriceCell(row, provider);
+        appendObservationTimeCell(row, provider);
+        appendRetryCell(row, provider);
         appendRefreshCell(row, provider);
         tableBody.append(row);
     }
     synchronizeBatchControls();
-    frontendTrace("main", "SOL Prices Desk market-price registry rows rendered", { rowCount: rows.length });
+    frontendTrace("main", "SOL Prices Desk market-price registry rows rendered", {
+        rowCount: rows.length,
+        observedCount: rows.filter(provider => provider.refreshed).length,
+        attentionCount: rows.filter(provider => provider.availability !== "ready").length,
+    });
+}
+
+function selectAllProviders(selected: boolean): void {
+    selectedProviderIds.clear();
+    if (selected) {
+        for (const provider of currentMarketPriceRows) {
+            selectedProviderIds.add(provider.providerId);
+        }
+    }
+    frontendDebug("main", "SOL Prices Desk select-all providers control changed", {
+        selected,
+        selectedCount: selectedProviderIds.size,
+    });
+    renderMarketPriceRows(currentMarketPriceRows);
+}
+
+function clearProviderSelection(): void {
+    const selectedCount = selectedProviderIds.size;
+    frontendDebug("main", "SOL Prices Desk clear provider selection control clicked", { selectedCount });
+    selectedProviderIds.clear();
+    renderMarketPriceRows(currentMarketPriceRows);
 }
 
 function bindMarketPriceControls(): void {
     const selectedButton = document.querySelector<HTMLButtonElement>("#refreshSelectedButton");
     const allButton = document.querySelector<HTMLButtonElement>("#refreshAllButton");
+    const clearButton = document.querySelector<HTMLButtonElement>("#clearSelectionButton");
+    const selectAll = document.querySelector<HTMLInputElement>("#selectAllProviders");
     selectedButton?.addEventListener("click", () => {
         void refreshSelectedMarketPrices();
     });
     allButton?.addEventListener("click", () => {
         void refreshAllMarketPrices();
     });
+    clearButton?.addEventListener("click", () => {
+        clearProviderSelection();
+    });
+    selectAll?.addEventListener("change", () => {
+        selectAllProviders(selectAll.checked);
+    });
     synchronizeBatchControls();
-    frontendTrace("main", "SOL Prices Desk market-price batch controls installed");
+    frontendTrace("main", "SOL Prices Desk market-price controls installed");
 }
 
 function renderRuntimeStatus(status: MarketPriceRuntimeStatusDto): void {
diff --git a/crates/ksp-app-solprices-desk/package.json b/crates/ksp-app-solprices-desk/package.json
index 18ce02e..14367f0 100644
--- a/crates/ksp-app-solprices-desk/package.json
+++ b/crates/ksp-app-solprices-desk/package.json
@@ -1,7 +1,7 @@
 {
     "name": "ksp-app-solprices-desk",
     "private": true,
-    "version": "0.2.12-pre.6",
+    "version": "0.2.12-pre.7",
     "type": "module",
     "scripts": {
         "dev": "vite",
diff --git a/crates/ksp-app-solprices-desk/src/app_state.rs b/crates/ksp-app-solprices-desk/src/app_state.rs
index 8d38873..6980fd9 100644
--- a/crates/ksp-app-solprices-desk/src/app_state.rs
+++ b/crates/ksp-app-solprices-desk/src/app_state.rs
@@ -1,5 +1,5 @@
 // file: crates/ksp-app-solprices-desk/src/app_state.rs
-// version: 5
+// version: 6
 
 //! Shared backend state owned by the SOL Prices Desk Tauri application.
 
@@ -129,7 +129,7 @@ impl crate::AppState {
             fallback_logging_active: runtime.fallback_active,
             provider_count,
             ready_provider_count,
-            shell_phase: "pre.006-multi-refresh".to_owned(),
+            shell_phase: "pre.007-ux-instrumentation".to_owned(),
             startup_diagnostic: runtime.startup_diagnostic.clone(),
             unavailable_provider_count,
         });
diff --git a/crates/ksp-app-solprices-desk/src/tauri.rs b/crates/ksp-app-solprices-desk/src/tauri.rs
index cab2542..1a4402c 100644
--- a/crates/ksp-app-solprices-desk/src/tauri.rs
+++ b/crates/ksp-app-solprices-desk/src/tauri.rs
@@ -1,5 +1,5 @@
 // file: crates/ksp-app-solprices-desk/src/tauri.rs
-// version: 5
+// version: 6
 
 //! Tauri runtime assembly for the KSP SOL prices desktop application.
 
@@ -98,12 +98,24 @@ fn configure_setup(builder: tauri::Builder<tauri::Wry>) -> tauri::Builder<tauri:
     });
 }
 
+fn project_command_error(command: &'static str, domain: &'static str, error: &ksp_core_lib::Error) -> crate::CommandErrorDto {
+    ksp_logging_lib::warn!(
+        target: crate::TRACING_TARGET,
+        domain = domain,
+        command = command,
+        error_domain = error.code().domain(),
+        error_code = error.code().code(),
+        "SOL Prices Desk Tauri command failed"
+    );
+    return crate::CommandErrorDto::from_error(error);
+}
+
 #[tauri::command]
 fn emit_frontend_log(payload: crate::FrontendLogPayloadDto) -> std::result::Result<(), crate::CommandErrorDto> {
     let result = crate::emit_frontend_log_event(payload);
     return match result {
         std::result::Result::Ok(()) => std::result::Result::Ok(()),
-        std::result::Result::Err(error) => std::result::Result::Err(crate::CommandErrorDto::from_error(&error)),
+        std::result::Result::Err(error) => std::result::Result::Err(project_command_error("emit_frontend_log", crate::TRACING_DOMAIN_FRONTEND, &error)),
     };
 }
 
@@ -112,7 +124,7 @@ fn get_runtime_status(state: tauri::State<'_, crate::AppState>) -> std::result::
     let result = state.runtime_status();
     return match result {
         std::result::Result::Ok(value) => std::result::Result::Ok(value),
-        std::result::Result::Err(error) => std::result::Result::Err(crate::CommandErrorDto::from_error(&error)),
+        std::result::Result::Err(error) => std::result::Result::Err(project_command_error("get_runtime_status", crate::TRACING_DOMAIN_SHELL, &error)),
     };
 }
 
@@ -123,10 +135,17 @@ fn list_market_prices(
     let result = state.list_market_prices();
     return match result {
         std::result::Result::Ok(value) => {
-            ksp_logging_lib::trace!(target: crate::TRACING_TARGET, domain = crate::TRACING_DOMAIN_OFFCHAIN_TRANSPORT, row_count = value.len(), "projected SOL Prices Desk market-price registry rows");
+            ksp_logging_lib::trace!(
+                target: crate::TRACING_TARGET,
+                domain = crate::TRACING_DOMAIN_OFFCHAIN_TRANSPORT,
+                row_count = value.len(),
+                "projected SOL Prices Desk market-price registry rows"
+            );
             std::result::Result::Ok(value)
         },
-        std::result::Result::Err(error) => std::result::Result::Err(crate::CommandErrorDto::from_error(&error)),
+        std::result::Result::Err(error) => {
+            std::result::Result::Err(project_command_error("list_market_prices", crate::TRACING_DOMAIN_OFFCHAIN_TRANSPORT, &error))
+        },
     };
 }
 
@@ -137,7 +156,9 @@ async fn refresh_all_market_prices(
     let result = state.refresh_all_market_prices().await;
     return match result {
         std::result::Result::Ok(value) => std::result::Result::Ok(value),
-        std::result::Result::Err(error) => std::result::Result::Err(crate::CommandErrorDto::from_error(&error)),
+        std::result::Result::Err(error) => {
+            std::result::Result::Err(project_command_error("refresh_all_market_prices", crate::TRACING_DOMAIN_OFFCHAIN_TRANSPORT, &error))
+        },
     };
 }
 
@@ -149,7 +170,9 @@ async fn refresh_market_price(
     let result = state.refresh_market_price(provider_id).await;
     return match result {
         std::result::Result::Ok(value) => std::result::Result::Ok(value),
-        std::result::Result::Err(error) => std::result::Result::Err(crate::CommandErrorDto::from_error(&error)),
+        std::result::Result::Err(error) => {
+            std::result::Result::Err(project_command_error("refresh_market_price", crate::TRACING_DOMAIN_OFFCHAIN_TRANSPORT, &error))
+        },
     };
 }
 
@@ -161,7 +184,9 @@ async fn refresh_market_prices(
     let result = state.refresh_market_prices(request).await;
     return match result {
         std::result::Result::Ok(value) => std::result::Result::Ok(value),
-        std::result::Result::Err(error) => std::result::Result::Err(crate::CommandErrorDto::from_error(&error)),
+        std::result::Result::Err(error) => {
+            std::result::Result::Err(project_command_error("refresh_market_prices", crate::TRACING_DOMAIN_OFFCHAIN_TRANSPORT, &error))
+        },
     };
 }
 
@@ -174,6 +199,6 @@ async fn splash_frontend_ready(
     let result = crate::splash_frontend_ready_service(app, webview_window, &state).await;
     return match result {
         std::result::Result::Ok(()) => std::result::Result::Ok(()),
-        std::result::Result::Err(error) => std::result::Result::Err(crate::CommandErrorDto::from_error(&error)),
+        std::result::Result::Err(error) => std::result::Result::Err(project_command_error("splash_frontend_ready", crate::TRACING_DOMAIN_WINDOWS, &error)),
     };
 }
diff --git a/crates/ksp-app-solprices-desk/tauri.conf.json b/crates/ksp-app-solprices-desk/tauri.conf.json
index f6b9581..dd0c32b 100644
--- a/crates/ksp-app-solprices-desk/tauri.conf.json
+++ b/crates/ksp-app-solprices-desk/tauri.conf.json
@@ -1,7 +1,7 @@
 {
     "$schema": "https://schema.tauri.app/config/2",
     "productName": "KSP SOL Prices Desk",
-    "version": "0.2.12-pre.6",
+    "version": "0.2.12-pre.7",
     "identifier": "com.sasedev.ksp-app-solprices-desk",
     "build": {
         "beforeDevCommand": {
diff --git a/crates/ksp-app-solprices-desk/tests/desktop_contract.rs b/crates/ksp-app-solprices-desk/tests/desktop_contract.rs
index cab7d68..f8b0a37 100644
--- a/crates/ksp-app-solprices-desk/tests/desktop_contract.rs
+++ b/crates/ksp-app-solprices-desk/tests/desktop_contract.rs
@@ -1,5 +1,5 @@
 // file: crates/ksp-app-solprices-desk/tests/desktop_contract.rs
-// version: 6
+// version: 7
 
 //! Desktop scaffold, shared-template and Config packaging contract audits for SOL Prices Desk `0.2.12`.
 
@@ -246,3 +246,46 @@ fn pre_006_market_price_runtime_adds_selected_and_global_refresh_without_polling
         assert!(!main_typescript.contains(forbidden), "pre.006 must not add consumer scheduling: {forbidden}");
     }
 }
+
+#[test]
+fn pre_007_prices_view_is_responsive_and_projects_generic_states_without_price_coercion() {
+    let root = app_root();
+    let main_html = read_text(root.join("frontend/main.html").as_path());
+    for required in [
+        r#"id="pricesSummaryProviders""#,
+        r#"id="pricesSummaryReady""#,
+        r#"id="pricesSummaryObserved""#,
+        r#"id="pricesSummaryAttention""#,
+        r#"id="pricesSummaryLoading""#,
+        r#"id="selectAllProviders""#,
+        r#"id="clearSelectionButton""#,
+        "Observation times",
+        "app-market-table-container",
+        "visually-hidden",
+    ] {
+        assert!(main_html.contains(required), "pre.007 Prices UX is missing {required}");
+    }
+    let main_typescript = read_text(root.join("frontend/ts/main.ts").as_path());
+    for required in [
+        "availabilityPresentations",
+        "Authentication unavailable",
+        "Cooling down",
+        "Quota unavailable",
+        "Temporarily unavailable",
+        "formatUnixMillis",
+        "BigInt(value)",
+        "Not supplied",
+        "selectAllProviders",
+        "clearProviderSelection",
+        "pricesSummaryObserved",
+        "app-market-row-loading",
+    ] {
+        assert!(main_typescript.contains(required), "pre.007 Prices UX is missing {required}");
+    }
+    assert!(!main_typescript.contains("parseFloat("));
+    assert!(!main_typescript.contains("Number(provider.price"));
+    let app_scss = read_text(root.join("frontend/sass/_app.scss").as_path());
+    for required in ["position: sticky", "font-variant-numeric: tabular-nums", "app-market-summary-card", "app-market-table-container"] {
+        assert!(app_scss.contains(required), "pre.007 responsive styling is missing {required}");
+    }
+}
diff --git a/crates/ksp-app-solprices-desk/tests/desktop_security.rs b/crates/ksp-app-solprices-desk/tests/desktop_security.rs
index db89a80..ea57acc 100644
--- a/crates/ksp-app-solprices-desk/tests/desktop_security.rs
+++ b/crates/ksp-app-solprices-desk/tests/desktop_security.rs
@@ -1,5 +1,5 @@
 // file: crates/ksp-app-solprices-desk/tests/desktop_security.rs
-// version: 6
+// version: 7
 
 //! Security, ownership and frontend instrumentation canaries for SOL Prices Desk.
 
@@ -142,3 +142,47 @@ fn pre_006_frontend_batch_controls_are_logged_without_price_or_provider_payloads
         assert!(!main.contains(forbidden), "batch frontend logging must not serialize price/provider/secret values: {forbidden}");
     }
 }
+
+#[test]
+fn pre_007_all_frontend_controls_and_backend_command_failures_are_instrumented_safely() {
+    let root = app_root();
+    let main = read_text(root.join("frontend/ts/main.ts").as_path());
+    for required in [
+        "SOL Prices Desk navigation control clicked",
+        "SOL Prices Desk market-price selection control changed",
+        "SOL Prices Desk select-all providers control changed",
+        "SOL Prices Desk clear provider selection control clicked",
+        "SOL Prices Desk market-price refresh control clicked",
+        "SOL Prices Desk selected market-price refresh control clicked",
+        "SOL Prices Desk global market-price refresh control clicked",
+    ] {
+        assert!(main.contains(required), "pre.007 frontend control instrumentation is missing {required}");
+    }
+    for forbidden in [
+        "JSON.stringify(currentMarketPriceRows)",
+        "JSON.stringify(result)",
+        "price: provider.price",
+        "providerTimestampUnixMillis:",
+        "receivedAtUnixMillis:",
+        "retryAtUnixMillis:",
+        "apiKey",
+        "authorization",
+    ] {
+        assert!(!main.contains(forbidden), "pre.007 frontend instrumentation must not log business/secret values: {forbidden}");
+    }
+    let tauri = read_text(root.join("src/tauri.rs").as_path());
+    assert!(tauri.contains("fn project_command_error"));
+    assert!(tauri.contains("error_domain = error.code().domain()"));
+    assert!(tauri.contains("error_code = error.code().code()"));
+    assert!(tauri.contains("SOL Prices Desk Tauri command failed"));
+    assert!(!tauri.contains("error_message = error"));
+}
+
+#[test]
+fn pre_007_remains_manual_without_browser_persistence_or_price_scheduler() {
+    let root = app_root();
+    let main = read_text(root.join("frontend/ts/main.ts").as_path());
+    for forbidden in ["setInterval(", "setTimeout(", "requestAnimationFrame(", "localStorage", "sessionStorage", "fetch(", "XMLHttpRequest"] {
+        assert!(!main.contains(forbidden), "pre.007 must remain manual and backend-owned: {forbidden}");
+    }
+}
diff --git a/deltas/0.2.12/pre.007.md b/deltas/0.2.12/pre.007.md
new file mode 100644
index 0000000..01ac28d
--- /dev/null
+++ b/deltas/0.2.12/pre.007.md
@@ -0,0 +1,112 @@
+# Delta `0.2.12-pre.007` — UX et instrumentation SOL Prices Desk
+
+## 1. Identité
+
+```text
+release : 0.2.12
+tranche : pre.007
+version Cargo : 0.2.12-pre.7
+base : 0.2.12-pre.6
+```
+
+Le gate opérateur de `pre.006` est intégralement propre : audits Rust/Markdown, `cargo check --workspace`, Clippy, `cargo test -p ksp-app-solprices-desk`, `cargo test --workspace` et lancement `cargo tauri dev` passent. Le parcours manuel confirme également le fonctionnement du multi-refresh.
+
+## 2. Scope réalisé
+
+`pre.007` finalise l'ergonomie du SOL Prices Desk sans modifier les contrats de dispatch Off-chain :
+
+```text
+résumé états providers                   Providers / Ready / Observed / Attention / Refreshing
+table                                   responsive + header sticky + scroll horizontal borné
+colonnes secondaires                    Semantics/Auth adaptatives
+availability                            badges génériques provider-neutral
+prix                                    String exacte inchangée
+timestamps                              rendu humain + millisecondes exactes
+provider timestamp absent               Not supplied, jamais remplacé par received_at
+sélection                               row + select all + clear selection
+refresh                                 row / selected / all inchangés
+nouvelle commande IPC                   aucune
+```
+
+## 3. Lisibilité et fraîcheur
+
+La table ne transforme pas la vérité métier :
+
+- le prix exact reste la `String` canonique fournie par `MarketPriceDecimal` ;
+- aucun `parseFloat` ni `Number(provider.price)` n'est introduit ;
+- les millisecondes exactes restent visibles pour les timestamps ;
+- une présentation locale/ISO est calculée uniquement pour l'affichage temporel, après validation d'une valeur entière compatible `Date` ;
+- `provider_timestamp = None` est rendu comme `Not supplied` ;
+- `received_at` reste une ligne KSP distincte ;
+- `retry_at` est affiché séparément lorsqu'il existe ;
+- `loading` ne remplace pas l'availability persistée : il devient uniquement le badge visuel temporaire `Refreshing`.
+
+## 4. Interactions frontend
+
+La sélection gagne deux contrôles purement locaux :
+
+```text
+select all providers
+clear selection
+```
+
+Ils ne déclenchent aucun appel réseau et ne créent aucun état persistant navigateur. Le master checkbox expose les états `checked`/`indeterminate` à partir de la sélection courante. Les boutons batch restent désactivés pendant une opération visible `loading`.
+
+## 5. Instrumentation
+
+Le bridge Logging couvre désormais l'ensemble des contrôles :
+
+```text
+navigation/view activation                      debug
+sélection row                                   debug + provider_id opaque + bool
+select all                                      debug + selectedCount
+clear selection                                 debug + selectedCount
+Refresh row                                     debug + provider_id opaque
+Refresh selected                                debug + selectedCount
+Refresh all                                     debug + providerCount
+IPC request/completion                          debug / trace
+rendu table                                     trace + row/observed/attention counts
+échec frontend                                  warn sans payload métier
+échec command backend                           warn + command/error_domain/error_code
+```
+
+Aucun prix, timestamp, body provider, URL, header, API key, credential ou DTO complet n'est journalisé.
+
+## 6. Canaris
+
+Les canaris `pre.007` vérifient :
+
+- présence du résumé, du master select, de `Clear selection`, du header sticky et des styles responsive ;
+- projection des états génériques actuels sans branche provider spécifique ;
+- absence de coercition flottante du prix ;
+- distinction explicite entre provider timestamp et KSP receipt timestamp ;
+- instrumentation de tous les contrôles utilisateur ;
+- projection backend des erreurs limitée à `command`, `error_domain` et `error_code` ;
+- absence de `fetch`, `XMLHttpRequest`, `localStorage`, `sessionStorage`, `setInterval`, `setTimeout` et `requestAnimationFrame` dans le frontend prix.
+
+## 7. Hors scope confirmé
+
+```text
+hardening hostile batch/package final           pre.008
+Wallet Desk Off-chain runtime                    pre.009
+Wallet Desk price DTO/commands                   pre.010
+Wallet Desk price UI                             pre.011
+auto-refresh / polling                           OUT 0.2.12
+prix canonique / fallback / moyenne              OUT 0.2.12
+valorisation USD Wallet                          OUT 0.2.12
+```
+
+## 8. Gate
+
+À exécuter par l'opérateur :
+
+```bash
+cargo fmt --all
+python3 scripts/audit_rust_workspace_rules.py
+python3 scripts/audit_markdown_tables.py README.md RULES.md ROADMAP.md CHANGELOG.md docs prompts crates deltas/0.2.12
+cargo check --workspace
+cargo clippy --workspace --all-targets
+cargo test -p ksp-app-solprices-desk
+cargo test --workspace
+(cd crates/ksp-app-solprices-desk && cargo tauri dev)
+```
diff --git a/docs/plans/019-V0_2_12_SOL_PRICES_DESK_PLAN.md b/docs/plans/019-V0_2_12_SOL_PRICES_DESK_PLAN.md
index caef359..fba3678 100644
--- a/docs/plans/019-V0_2_12_SOL_PRICES_DESK_PLAN.md
+++ b/docs/plans/019-V0_2_12_SOL_PRICES_DESK_PLAN.md
@@ -1,5 +1,5 @@
 <!-- file: docs/plans/019-V0_2_12_SOL_PRICES_DESK_PLAN.md -->
-<!-- version: 12 -->
+<!-- version: 13 -->
 
 # Plan `0.2.12` — SOL Prices Desk + intégration prix Wallet Desk
 
@@ -526,15 +526,15 @@ Le gate de `pre.005` confirme que le refresh individuel fonctionne et que le run
 
 ### `pre.006` — Refresh multiple et global
 
-**Statut : implémenté ; gate opérateur à confirmer.**
+**Statut : réalisé ; gate opérateur Cargo/workspace et parcours manuel multi-refresh intégralement PASS.**
 
 Ajout de `refresh_market_prices` et `refresh_all_market_prices` sur les APIs génériques `MarketPriceService::refresh_many`/`refresh_all`. La sélection frontend est reconstruite dans l'ordre courant des rows, le backend valide atomiquement doublons/IDs inconnus/conflits `in_flight`, marque toutes les lignes concernées `loading`, relâche le mutex de présentation pendant l'`await`, puis applique les outcomes dans leur ordre déterministe. `MarketPriceRefreshManyRequestDto` transporte uniquement les IDs opaques et `MarketPriceRefreshResultDto` retourne les rows affectées avec `requested_count`/`refreshed_count`. Les cooldown/retry deadlines restent les projections Off-chain existantes ; aucun polling, sleep consommateur, fallback automatique ou consensus provider n'est introduit.
 
 ### `pre.007` — UX et instrumentation SOL Prices Desk
 
-**Statut : planifié.**
+**Statut : implémenté ; gate opérateur à confirmer.**
 
-Finalisation de la table responsive, interactions utilisateur, états visuels, instrumentation frontend/backend et polish du Desk. La tranche reste manuelle : aucun auto-refresh ni persistance navigateur n'est ajouté.
+Finalisation de la table responsive sans changer le contrat de dispatch : résumé providers/ready/observed/attention/refreshing, header sticky, colonnes secondaires adaptatives, badges génériques d'auth/semantics/availability, prix exact conservé en String et timestamps présentés à la fois sous forme humaine et en millisecondes exactes. `provider_timestamp = None` est rendu explicitement comme `Not supplied`, sans substitution par `received_at`. La sélection gagne un contrôle global et `Clear selection`, uniquement frontend. Chaque nouveau contrôle est journalisé en `debug`; les rendus et comptes sûrs restent en `trace`. Les wrappers Tauri journalisent les échecs avec seulement `command`, `error_domain` et `error_code`. Aucun prix, timestamp, payload provider, URL, header ou credential n'entre dans les logs. La tranche reste manuelle : aucune nouvelle commande métier, aucun auto-refresh, scheduler ou persistance navigateur n'est ajouté.
 
 ### `pre.008` — Hardening SOL Prices Desk
 
@@ -590,7 +590,7 @@ Préparation du prompt de la release suivante, de `CHANGELOG.md` et de `ROADMAP.
 
 Mécanique de publication stable uniquement, après validation de la dernière prerelease et vérification de la cohérence de release. Aucun défaut fonctionnel ou documentaire ne doit être absorbé par `rel.001`.
 
-Le point de packaging transversal de `pre.003` est désormais fermé. Le prochain risque fonctionnel est borné aux refresh `pre.005`/`pre.006`, sans remettre en cause le découpage souple ni les responsabilités documentaires de clôture.
+Le packaging transversal et les refresh manuels du Price Desk sont désormais fermés par les gates opérateur jusqu’à `pre.006`. Après le polish `pre.007`, le prochain risque fonctionnel est borné au hardening `pre.008` avant l’ouverture du couloir Wallet Desk `pre.009+`, sans remettre en cause le découpage souple ni les responsabilités documentaires de clôture.
 
 ## 20. Critères de sortie `pre.001`
 
diff --git a/docs/validation/015-V0_2_12_SOL_PRICES_DESK.md b/docs/validation/015-V0_2_12_SOL_PRICES_DESK.md
index af98836..f056683 100644
--- a/docs/validation/015-V0_2_12_SOL_PRICES_DESK.md
+++ b/docs/validation/015-V0_2_12_SOL_PRICES_DESK.md
@@ -1,5 +1,5 @@
 <!-- file: docs/validation/015-V0_2_12_SOL_PRICES_DESK.md -->
-<!-- version: 11 -->
+<!-- version: 12 -->
 
 # Validation `0.2.12` — SOL Prices Desk + intégration Wallet Desk
 
@@ -51,11 +51,12 @@ NOT RUN   commande non exécutée dans le contexte indiqué
 | splash Price Desk      | lifecycle KSP commun                    | PASS    |
 | main shell Price Desk  | header/navigation KSP                   | PASS    |
 | table providers        | registry provider-neutral, ordre stable | PASS    |
+| table responsive UX    | sticky/badges/timestamps distincts      | PASS    |
 | prix exact             | String issue de `MarketPriceDecimal`    | PASS    |
 | availability/fraîcheur | état générique + timestamps réels       | PASS    |
 | refresh row            | `MarketPriceService::refresh`           | PASS    |
-| refresh selected/many  | `MarketPriceService::refresh_many`      | PENDING |
-| refresh all            | `MarketPriceService::refresh_all`       | PENDING |
+| refresh selected/many  | `MarketPriceService::refresh_many`      | PASS    |
+| refresh all            | `MarketPriceService::refresh_all`       | PASS    |
 | Diagnostics            | profils/counts sûrs seulement           | PASS    |
 | Wallet price panel     | Dashboard compact provider-neutral      | PENDING |
 | auto-refresh           | aucun scheduler/polling                 | OUT     |
@@ -63,17 +64,17 @@ NOT RUN   commande non exécutée dans le contexte indiqué
 
 ## 4. DTO/command matrix
 
-| Contrat                                | Entrée/sortie sûre                                                 | Statut  |
-|----------------------------------------|--------------------------------------------------------------------|---------|
-| `MarketPriceRuntimeStatusDto`          | profiles/counts sans secret                                        | PASS    |
-| `MarketPriceProviderRowDto`            | ID/display/pair/semantics/auth/availability/price/timestamps/retry | PASS    |
-| single refresh direct                  | provider_id opaque seulement                                       | PASS    |
-| `MarketPriceRefreshManyRequestDto`     | liste bornée d’IDs opaques                                         | PENDING |
-| `MarketPriceRefreshResultDto`          | rows/outcome classifiés                                            | PENDING |
-| runtime/list/refresh/many/all commands | aucun URL/header/API key/body                                      | PENDING |
-| TS-RS exports                          | bindings générés non versionnés                                    | PASS    |
-| provider-specific type dans IPC        | interdit                                                           | OUT     |
-| prix `f64` comme vérité IPC            | interdit                                                           | OUT     |
+| Contrat                                | Entrée/sortie sûre                                                 | Statut |
+|----------------------------------------|--------------------------------------------------------------------|--------|
+| `MarketPriceRuntimeStatusDto`          | profiles/counts sans secret                                        | PASS   |
+| `MarketPriceProviderRowDto`            | ID/display/pair/semantics/auth/availability/price/timestamps/retry | PASS   |
+| single refresh direct                  | provider_id opaque seulement                                       | PASS   |
+| `MarketPriceRefreshManyRequestDto`     | liste d’IDs opaques ; borne hostile à durcir en `pre.008`          | PASS   |
+| `MarketPriceRefreshResultDto`          | rows/outcome classifiés                                            | PASS   |
+| runtime/list/refresh/many/all commands | aucun URL/header/API key/body                                      | PASS   |
+| TS-RS exports                          | bindings générés non versionnés                                    | PASS   |
+| provider-specific type dans IPC        | interdit                                                           | OUT    |
+| prix `f64` comme vérité IPC            | interdit                                                           | OUT    |
 
 ## 5. Config/composite matrix
 
@@ -94,35 +95,36 @@ NOT RUN   commande non exécutée dans le contexte indiqué
 
 ## 6. Provider-agnostic boundary matrix
 
-| Canari                                     | Attendu          | Statut  |
-|--------------------------------------------|------------------|---------|
-| app dépend du service/registry générique   | oui              | PASS    |
-| branche `coingecko`/`kraken`/etc. dans app | aucune           | PASS    |
-| SDK provider dans app                      | aucun            | PASS    |
-| reqwest/provider fetch frontend            | aucun            | PASS    |
-| endpoint/header/API key dans DTO           | aucun            | PASS    |
-| rate limiter/sleep/retry provider dans app | aucun            | PASS    |
-| refresh many ordre service                 | préservé         | PENDING |
-| semantics provider-neutral visibles        | oui, sans fusion | PASS    |
-| prix canonique/fallback/moyenne            | aucun            | OUT     |
+| Canari                                     | Attendu          | Statut |
+|--------------------------------------------|------------------|--------|
+| app dépend du service/registry générique   | oui              | PASS   |
+| branche `coingecko`/`kraken`/etc. dans app | aucune           | PASS   |
+| SDK provider dans app                      | aucun            | PASS   |
+| reqwest/provider fetch frontend            | aucun            | PASS   |
+| endpoint/header/API key dans DTO           | aucun            | PASS   |
+| rate limiter/sleep/retry provider dans app | aucun            | PASS   |
+| refresh many ordre service                 | préservé         | PASS   |
+| semantics provider-neutral visibles        | oui, sans fusion | PASS   |
+| prix canonique/fallback/moyenne            | aucun            | OUT    |
 
 ## 7. Security matrix
 
-| Risque/canari                  | Attendu                                      | Statut  |
-|--------------------------------|----------------------------------------------|---------|
-| URL arbitraire depuis frontend | impossible par contrat command               | PASS    |
-| extraction API key/header      | aucune projection/log                        | PASS    |
-| provider_id inconnu            | erreur KSP sûre                              | PASS    |
-| batch duplicate/oversized      | rejet avant dispatch                         | PENDING |
-| refresh spam                   | limites/cooldown Off-chain toujours actifs   | PASS    |
-| stale observation              | timestamps/état distingués                   | PASS    |
-| double-click race              | in-flight/order contrôlés                    | PENDING |
-| close pendant refresh          | aucune persistance/sûreté frontend requise   | PENDING |
-| CWD/resource confusion         | canaris propres à chaque app                 | PENDING |
-| Price Desk capabilities        | `core:default`, `tracing:default` uniquement | PASS    |
-| plugin dialog Price Desk       | absent                                       | PASS    |
-| frontend sensitive logging     | action/ID/count/code seulement               | PASS    |
-| Wallet VIEW/OWNER/secrets      | non-régression                               | PENDING |
+| Risque/canari                  | Attendu                                         | Statut  |
+|--------------------------------|-------------------------------------------------|---------|
+| URL arbitraire depuis frontend | impossible par contrat command                  | PASS    |
+| extraction API key/header      | aucune projection/log                           | PASS    |
+| provider_id inconnu            | erreur KSP sûre                                 | PASS    |
+| batch duplicate                | rejet avant dispatch                            | PASS    |
+| batch oversized                | borne hostile applicative à durcir en `pre.008` | PENDING |
+| refresh spam                   | limites/cooldown Off-chain toujours actifs      | PASS    |
+| stale observation              | timestamps/état distingués                      | PASS    |
+| double-click race              | in-flight/order contrôlés                       | PASS    |
+| close pendant refresh          | aucune persistance/sûreté frontend requise      | PENDING |
+| CWD/resource confusion         | canaris propres à chaque app                    | PENDING |
+| Price Desk capabilities        | `core:default`, `tracing:default` uniquement    | PASS    |
+| plugin dialog Price Desk       | absent                                          | PASS    |
+| frontend sensitive logging     | action/ID/count/code seulement                  | PASS    |
+| Wallet VIEW/OWNER/secrets      | non-régression                                  | PENDING |
 
 ## 8. Wallet integration matrix
 
@@ -529,4 +531,37 @@ python3 scripts/audit_markdown_tables.py README.md ... deltas      PASS
 cargo fmt/check/clippy/test                                        NOT RUN — cargo indisponible dans le sandbox
 ```
 
-Les lignes `refresh selected/many`, `refresh all`, `MarketPriceRefreshManyRequestDto`, `MarketPriceRefreshResultDto`, ordre many, batch duplicate/oversized et double-click race de la matrice générale restent `PENDING` jusqu'au gate opérateur de cette tranche.
+Le gate opérateur de `pre.006` fourni le 2026-08-27 ferme ensuite cette tranche : audits, `cargo check`, Clippy, test ciblé et `cargo test --workspace` passent, `cargo tauri dev` démarre correctement et le parcours manuel confirme que le multi-refresh fonctionne. Les lignes `refresh selected/many`, `refresh all`, les deux DTOs batch, l'ordre many, le rejet des doublons et le conflit `in_flight` passent donc à `PASS`. La borne hostile d'une requête batch artificiellement surdimensionnée reste volontairement `PENDING` pour le hardening `pre.008`.
+
+## 23. Gate `0.2.12-pre.007`
+
+La tranche finalise l'UX et l'instrumentation sans modifier le moteur Off-chain ni ajouter de nouvelle commande métier :
+
+```text
+résumé Providers / Ready / Observed / Attention / Refreshing       implémenté
+header table sticky + scroll horizontal borné                       implémenté
+Semantics/Auth secondaires adaptatifs                               implémenté
+availability générique par badge                                    implémenté
+prix exact                                                          String inchangée, aucune coercition float
+timestamp provider absent                                           Not supplied, jamais remplacé par received_at
+timestamps présents                                                 local/ISO + millisecondes exactes visibles
+select all / clear selection                                        frontend uniquement
+clics select-all / clear / row / selected / all / navigation        debug
+rendu table + comptes sûrs                                          trace
+échec command backend                                               command + error_domain + error_code seulement
+nouvelle command IPC                                                aucune
+prix/timestamp/payload/URL/header/API key dans les logs             aucun
+auto-refresh / setInterval / setTimeout / requestAnimationFrame     absent
+localStorage / sessionStorage / fetch / XMLHttpRequest              absent
+```
+
+Canaris statiques ajoutés : table responsive et états génériques, absence de coercition du prix, instrumentation de tous les contrôles, projection sûre des erreurs backend et maintien du fonctionnement exclusivement manuel.
+
+Validations sandbox après matérialisation :
+
+```text
+python3 scripts/audit_rust_workspace_rules.py                      PASS
+python3 scripts/audit_markdown_tables.py README.md ... deltas      PASS
+TypeScript syntax transpile main.ts                                PASS
+cargo fmt/check/clippy/test                                        NOT RUN — cargo indisponible dans le sandbox
+```
