feat: add Discuss and Explore subagents for dynamic critique and code exploration

- Implement Discuss Subagent for multi-perspective critique with dynamic perspectives.
- Create Explore Subagent for shared codebase exploration with centralized caching.
- Add tests for CcwToolsMcpCard component to ensure enabled tools are preserved on config save.
- Introduce SessionPreviewPanel component for previewing and selecting sessions for Memory V2 extraction.
- Develop CommandCreateDialog component for creating/importing commands with import and CLI generate modes.

ccw/frontend/src/locales/en/cli-hooks.json

@@ -74,7 +74,8 @@
     "categories": {
       "notification": "Notification",
       "indexing": "Indexing",
-      "automation": "Automation"
+      "automation": "Automation",
+      "utility": "Utility"
     },
     "templates": {
       "session-start-notify": {
@@ -116,6 +117,30 @@
       "project-state-inject": {
         "name": "Project State Inject",
         "description": "Inject project guidelines and recent dev history at session start"
+      },
+      "memory-v2-extract": {
+        "name": "Memory V2 Extract",
+        "description": "Trigger Phase 1 extraction when session ends (after idle period)"
+      },
+      "memory-v2-auto-consolidate": {
+        "name": "Memory V2 Auto Consolidate",
+        "description": "Trigger Phase 2 consolidation after extraction jobs complete"
+      },
+      "memory-sync-dashboard": {
+        "name": "Memory Sync Dashboard",
+        "description": "Sync memory V2 status to dashboard on changes"
+      },
+      "memory-auto-compress": {
+        "name": "Auto Memory Compress",
+        "description": "Automatically compress memory when entries exceed threshold"
+      },
+      "memory-preview-extract": {
+        "name": "Memory Preview & Extract",
+        "description": "Preview extraction queue and extract eligible sessions"
+      },
+      "memory-status-check": {
+        "name": "Memory Status Check",
+        "description": "Check memory extraction and consolidation status"
       }
     },
     "actions": {

ccw/frontend/src/locales/en/commands.json

@@ -10,7 +10,8 @@
     "collapseAll": "Collapse All",
     "copy": "Copy",
     "showDisabled": "Show Disabled",
-    "hideDisabled": "Hide Disabled"
+    "hideDisabled": "Hide Disabled",
+    "cancel": "Cancel"
   },
   "source": {
     "builtin": "Built-in",
@@ -57,5 +58,45 @@
     "clickToDisableAll": "Click to disable all",
     "noCommands": "No commands in this group",
     "noEnabledCommands": "No enabled commands in this group"
+  },
+  "create": {
+    "title": "Create Command",
+    "location": "Location",
+    "locationProject": "Project Commands",
+    "locationProjectHint": ".claude/commands/",
+    "locationUser": "Global Commands",
+    "locationUserHint": "~/.claude/commands/",
+    "mode": "Creation Mode",
+    "modeImport": "Import File",
+    "modeImportHint": "Import command from existing file",
+    "modeGenerate": "AI Generate",
+    "modeGenerateHint": "Generate command using AI",
+    "sourcePath": "Source File Path",
+    "sourcePathPlaceholder": "Enter absolute path to command file",
+    "sourcePathHint": "File must be a valid command markdown file",
+    "customName": "Custom Name",
+    "customNamePlaceholder": "Leave empty to use original name",
+    "customNameHint": "Optional, overrides default command name",
+    "commandName": "Command Name",
+    "commandNamePlaceholder": "Enter command name",
+    "commandNameHint": "Used as the command file name",
+    "descriptionLabel": "Command Description",
+    "descriptionPlaceholder": "Describe what this command should do...",
+    "descriptionHint": "AI will generate command content based on this description",
+    "generateInfo": "AI will use CLI tools to generate the command",
+    "generateTimeHint": "Generation may take some time",
+    "validate": "Validate",
+    "import": "Import",
+    "generate": "Generate",
+    "validating": "Validating...",
+    "validCommand": "Validation passed",
+    "invalidCommand": "Validation failed",
+    "creating": "Creating...",
+    "created": "Command \"{name}\" created successfully",
+    "createError": "Failed to create command",
+    "sourcePathRequired": "Please enter source file path",
+    "commandNameRequired": "Please enter command name",
+    "descriptionRequired": "Please enter command description",
+    "validateFirst": "Please validate the command file first"
   }
 }

ccw/frontend/src/locales/en/mcp-manager.json

@@ -169,6 +169,10 @@
       "saveConfig": "Save Configuration",
       "saving": "Saving..."
     },
+    "feedback": {
+      "saveSuccess": "Configuration saved",
+      "saveError": "Failed to save configuration"
+    },
     "scope": {
       "global": "Global",
       "project": "Project",

ccw/frontend/src/locales/en/memory.json

@@ -180,6 +180,28 @@
     "statusBanner": {
       "running": "Pipeline Running - {count} job(s) in progress",
       "hasErrors": "Pipeline Idle - {count} job(s) failed"
+    },
+    "preview": {
+      "title": "Extraction Queue Preview",
+      "selectSessions": "Search sessions...",
+      "sourceCcw": "CCW",
+      "sourceNative": "Native",
+      "selectAll": "Select All",
+      "selectNone": "Select None",
+      "extractSelected": "Extract Selected ({count})",
+      "noSessions": "No sessions found",
+      "total": "Total",
+      "eligible": "Eligible",
+      "extracted": "Already Extracted",
+      "ready": "Ready",
+      "previewQueue": "Preview Queue",
+      "includeNative": "Include Native Sessions",
+      "selected": "{count} sessions selected",
+      "selectHint": "Select sessions to extract",
+      "ineligible": "Ineligible"
+    },
+    "extraction": {
+      "selectiveTriggered": "Selective extraction triggered"
     }
   }
 }