refine: only show workspace switching by default, not mutations

Changed the default filter to only show `ws:switch:*` commands, excluding
workspace mutations like create, delete, and rename. These management
commands are still accessible via the `>` prefix.

**Why:**
- Workspace switching is the primary use case
- Create/delete/rename are mutations that should require explicit intent
- Keeps the default palette extremely focused and fast

**Changes:**
- Filter by command ID prefix `ws:switch:*` instead of section name
- Updated documentation to clarify "switching" vs "workspace management"
- Updated Storybook story descriptions

Author: ammar-agent

docs/keybinds.md

@@ -58,11 +58,11 @@ When documentation shows `Ctrl`, it means:
 
 The command palette (`Ctrl+Shift+P`) is primarily a **workspace switcher** by default:
 
-- **Default**: Shows only workspace commands (switch, create, rename, etc.)
-- **`>` prefix**: Shows all commands (navigation, chat, modes, projects, etc.)
+- **Default**: Shows only workspace switching commands (no mutations like create/delete/rename)
+- **`>` prefix**: Shows all commands (navigation, chat, modes, projects, workspace management, etc.)
 - **`/` prefix**: Shows slash command suggestions for inserting into chat
 
-This design keeps the palette focused on the most common use case (workspace switching) while still providing quick access to all commands when needed.
+This design keeps the palette focused on the most common use case (switching between workspaces) while still providing quick access to all commands when needed.
 
 ## Tips
 

src/components/CommandPalette.stories.tsx

@@ -185,8 +185,8 @@ export const Default: Story = {
         <br />
         <strong>Features:</strong>
         <br />
-        • By default, shows workspace switching commands
-        <br />• Type <kbd>&gt;</kbd> to see all commands across all sections
+        • By default, shows only workspace switching commands (no create/delete/rename)
+        <br />• Type <kbd>&gt;</kbd> to see all commands including workspace management
         <br />• Type <kbd>/</kbd> to see slash commands for chat input
         <br />
         • Use ↑↓ arrow keys to navigate, Enter to execute

src/components/CommandPalette.tsx

@@ -208,10 +208,10 @@ export const CommandPalette: React.FC<CommandPaletteProps> = ({ getSlashContext
     // Filter actions based on prefix
     const showAllCommands = q.startsWith(">");
 
-    // When no prefix is used, only show workspace-related commands
+    // When no prefix is used, only show workspace switching commands (not mutations like create/delete/rename)
     const actionsToShow = showAllCommands
       ? rawActions
-      : rawActions.filter((action) => action.section === COMMAND_SECTIONS.WORKSPACES);
+      : rawActions.filter((action) => action.id.startsWith("ws:switch:"));
 
     const filtered = [...actionsToShow].sort((a, b) => {
       const ai = recentIndex.has(a.id) ? recentIndex.get(a.id)! : 9999;