feat: CLI v2.1.68–v2.1.74 compatibility updates (#221)

## Summary

This PR brings Hikari Desktop up to full compatibility with Claude Code CLI versions v2.1.68 through v2.1.74, implementing all changelog items audited in issues #200–#218.

## Changes

### Bug Fixes
- Remove deprecated Claude Opus 4.0 and 4.1 models from the model selector
- Auto-migrate users pinned to deprecated models to Opus 4.6

### New Features
- Add cron tool support (`CronCreate`, `CronDelete`, `CronList`) with character state mapping and `CLAUDE_CODE_DISABLE_CRON` settings toggle
- Handle `EnterWorktree` and `ExitWorktree` tools in character state mapping and tool display
- Add CLI update check with npm registry indicator in the version bar
- Add `agent_type` field and support the Agent tool rename from CLI v2.1.69
- Consume `worktree` field from status line hook events
- Display per-agent model override in the agent monitor tree
- Expose Claude Code CLI built-in slash commands (`/simplify`, `/loop`, `/batch`, `/memory`, `/context`) in the command menu with CLI badges
- Add `includeGitInstructions` toggle in settings
- Add `ENABLE_CLAUDEAI_MCP_SERVERS` opt-out setting
- Linkify MCP binary file paths (PDFs, audio, Office docs) in markdown output
- Add auto-memory panel, `/memory` slash command shortcut, and unified toast notification system
- Toast notifications for `WorktreeCreate` and `WorktreeRemove` hook events
- Sort session resume list by most recent activity, with most recent user message as preview
- Convert WSL Linux paths to Windows UNC paths when opening binary files via `open_binary_file` command
- Expose `autoMemoryDirectory` setting in ConfigSidebar (Agent Settings section)
- Add `/context` as a CLI built-in in the slash command menu
- Expose `modelOverrides` setting as a JSON textarea in ConfigSidebar (for AWS Bedrock, Google Vertex, etc.)

> **Note:** The CLI update check commit does not have a corresponding issue — it was a bonus addition during the audit sprint.

## Closes

Closes #200
Closes #201
Closes #202
Closes #205
Closes #206
Closes #207
Closes #208
Closes #209
Closes #210
Closes #211
Closes #212
Closes #213
Closes #214
Closes #215
Closes #216
Closes #217
Closes #218

Reviewed-on: #221
Co-authored-by: Hikari <hikari@nhcarrigan.com>
Co-committed-by: Hikari <hikari@nhcarrigan.com>

src/lib/stores/conversations.ts

@@ -7,6 +7,7 @@ import type {
   Attachment,
 } from "$lib/types/messages";
 import type { CharacterState } from "$lib/types/states";
+import type { WorktreeInfo } from "$lib/types/worktree";
 import { cleanupConversationTracking } from "$lib/tauri";
 import { characterState } from "$lib/stores/character";
 import { sessionsStore } from "$lib/stores/sessions";
@@ -41,6 +42,7 @@ export interface Conversation {
   successSoundFired: boolean;
   taskStartSoundFired: boolean;
   draftText: string;
+  worktreeInfo: WorktreeInfo | null;
 }
 
 const TAB_NAMES = [
@@ -165,6 +167,7 @@ function createConversationsStore() {
       successSoundFired: false,
       taskStartSoundFired: false,
       draftText: "",
+      worktreeInfo: null,
     };
   }
 
@@ -220,6 +223,7 @@ function createConversationsStore() {
   const pendingQuestion = derived(activeConversation, ($conv) => $conv?.pendingQuestion || null);
   const scrollPosition = derived(activeConversation, ($conv) => $conv?.scrollPosition ?? -1);
   const attachments = derived(activeConversation, ($conv) => $conv?.attachments || []);
+  const worktreeInfo = derived(activeConversation, ($conv) => $conv?.worktreeInfo ?? null);
 
   return {
     // Expose derived stores for compatibility
@@ -235,6 +239,7 @@ function createConversationsStore() {
     pendingRetryMessage: { subscribe: pendingRetryMessage.subscribe },
     scrollPosition: { subscribe: scrollPosition.subscribe },
     attachments: { subscribe: attachments.subscribe },
+    worktreeInfo: { subscribe: worktreeInfo.subscribe },
 
     // New conversation-specific stores
     conversations: { subscribe: conversations.subscribe },
@@ -976,6 +981,16 @@ function createConversationsStore() {
       });
     },
 
+    setWorktreeInfo: (conversationId: string, info: WorktreeInfo | null) => {
+      conversations.update((convs) => {
+        const conv = convs.get(conversationId);
+        if (conv) {
+          conv.worktreeInfo = info;
+        }
+        return convs;
+      });
+    },
+
     // Add initialization helper
     initialize: () => {
       ensureInitialized();