Add complete keyboard navigation.

specs/editor_misc.allium

@@ -342,6 +342,8 @@ surface MetadataDiffSurface {
     @guarantee ScanAction
         -- Scan/Rescan button at top.
         -- Progress bar + message during scan.
+        -- Control+Option+R (macOS) or Control+Alt+R runs the scan; repair buttons use Tab
+        -- and are activated with Enter or Space.
 
     @guarantee EntityTabs
         -- Tabs: Posts, Media, Scripts, Templates — each with badge count of diffs.
@@ -443,6 +445,8 @@ surface SiteValidationSurface {
 
     @guarantee ApplyAction
         -- Apply button disabled when nothing to fix.
+        -- Control+Option (macOS) or Control+Alt, followed by R, scans and A applies;
+        -- both remain in Tab order.
         -- On apply: renders missing, deletes extra, re-renders updated.
         -- Toast: "Validation applied: N rendered, N deleted".
 }

specs/editor_post.allium

@@ -131,6 +131,7 @@ surface PostEditorSurface {
 
     @guarantee MetadataSection
         -- Collapsible section. Starts expanded when title is empty.
+        -- Control+Option+M (macOS) or Control+Alt+M toggles it outside focused text input.
         -- Two-column layout.
         -- Left column: Title, Tags, Author, Language + detect button,
         --   Do Not Translate checkbox, Slug (read-only), Categories,
@@ -156,6 +157,7 @@ surface PostEditorSurface {
 
     @guarantee ExcerptSection
         -- Collapsible section with textarea (4 rows).
+        -- Control+Option+X (macOS) or Control+Alt+X toggles it outside focused text input.
 
     @guarantee EditorBodyToolbar
         -- Toolbar: "Content" label, mode toggle (Markdown/Preview),

specs/editor_settings.allium

@@ -219,6 +219,7 @@ surface SettingsViewSurface {
     @guarantee CollapsibleSections
         -- All 8 sections are collapsible.
         -- Section visibility respects search filter.
+        -- Each visible section exposes a unique Control+Option or Control+Alt access key.
 }
 
 -- ─── Settings view actions ──────────────────────────────────

specs/import.allium

@@ -136,6 +136,8 @@ surface WordPressImportSurface {
         -- taxonomy, and discovers WordPress shortcodes. The saved report shows
         -- item counts, conflicts, missing uploads, year distribution, macro
         -- usage, and importable totals before any project content is changed.
+        -- Its Conflicts, Posts, Pages, Media, Taxonomy, and Macros sections
+        -- expose unique Control+Option or Control+Alt access keys for disclosure control.
 
     @guarantee ConflictReview
         -- Conflicts default to ignore. The operator can keep ignoring, overwrite

specs/layout.allium

@@ -72,6 +72,26 @@ surface AppShellSurface {
         shell.sidebar.width
         shell.content_area.panel.visible
         shell.assistant_sidebar.visible
+
+    @guarantee KeyboardTraversal
+        -- Tab and Shift+Tab traverse every enabled button, checkbox, picker,
+        -- and text editor in visual order. Disabled controls are skipped.
+        -- Enter or Space activates the focused control.
+
+    @guarantee KeyboardHints
+        -- Holding Control+Option on macOS or Control+Alt on Linux/Windows reveals
+        -- an access-key marker on every enabled control intersecting the viewport.
+        -- Semantic controls use their direct one-character shortcut. Remaining
+        -- visible controls receive stable two- or three-letter A-Z codes in
+        -- widget-tree order, excluding direct letters as generic prefixes.
+        -- Every marker is a warm-yellow box with black text and border, placed
+        -- wholly inside its control without obscuring activity-bar icons.
+        -- Typing a prefix while holding the modifier hides non-matches and shows
+        -- only each candidate's remaining suffix; a complete code activates its
+        -- control. Escape or modifier release cancels the access-key mode.
+        -- Covered layers and off-screen scroll content receive no code. A focused
+        -- Option/Alt alone always remains available for character input, and a
+        -- focused text editor retains modified input instead of entering the mode.
 }
 
 value ContentArea {
@@ -162,6 +182,7 @@ value ActivityButton {
     label_key: String                -- i18n key for tooltip
     badge: Badge?                    -- only git has a badge
     active: Boolean                  -- highlighted when this view is showing
+    access_key: String               -- Control+Option (macOS) or Control+Alt + 1..9,0 in displayed order
 }
 
 value Badge {
@@ -317,3 +338,9 @@ value TokenUsage {
 
 -- Ctrl/Cmd+B: toggle sidebar
 -- Ctrl/Cmd+W: close active tab (see tabs.allium)
+-- Tab / Shift+Tab: next / previous enabled control
+-- Enter / Space: activate focused control
+-- Control+Option (macOS) or Control+Alt + 1..9,0: activate the corresponding activity
+-- Post editor Control+Option (macOS) or Control+Alt + M/X: toggle metadata/excerpt
+-- Import and Settings sections expose unique Control+Option or Control+Alt access keys
+-- Site Validation uses R/A and Metadata Diff uses R with the platform modifier pair