chore: CLI v2.1.75–v2.1.80 audit and support (#223–#232) (#233)

## Summary

This PR implements all tickets filed from the CLI v2.1.74 → v2.1.80 changelog audit (issues #223–#232).

### Changes by Issue

- **#223** — `feat: handle Elicitation and ElicitationResult hook events`
  New `ElicitationModal.svelte` component, Rust parsing for `[Elicitation Hook]` and `[ElicitationResult Hook]`, new store methods, and TypeScript event types.

- **#224** — `feat: handle StopFailure hook event for API error turns`
  Rust parsing for `[StopFailure Hook]`; frontend shows error toast + error character state.

- **#225** — `feat: handle PostCompact hook event`
  Rust parsing for `[PostCompact Hook]`; frontend shows info toast + success character state.

- **#226** — `feat: expose --name CLI flag as session name at startup`
  Added `session_name` field to `ClaudeStartOptions`; `StatusBar.doConnect()` passes the conversation name.

- **#227** — `fix: tighten startup watchdog and correct misleading comment`
  Startup watchdog tightened from 60 s → 30 s; corrected a comment that said "5 minutes" whilst the code used 60 seconds.

- **#228** — `fix: document cost estimation review and update default model fallback`
  Default model fallback updated from `claude-sonnet-4-5-20250929` → `claude-sonnet-4-6`; added doc comment explaining why char-based estimation is unaffected by v2.1.75 token overcounting fix.

- **#229** — `chore: update supported CLI version constant to 2.1.80`
  `SUPPORTED_CLI_VERSION` bumped in `CliVersion.svelte`.

- **#230** — `feat: surface memory file last-modified timestamps in MemoryBrowserPanel`
  Backend populates `last_modified` Unix timestamp; frontend formats and displays it per file.

- **#231** — `feat: update max_output_tokens upper bound and helper text for 128k`
  Input max raised to 128 000; placeholder and helper text updated to reflect model-dependent defaults and 128 k ceiling for Opus/Sonnet 4.6.

- **#232** — `fix: document non-streaming fallback compatibility with mid-session watchdog`
  Added doc comment above `STUCK_TIMEOUT` explaining the 5-minute watchdog is intentionally larger than the CLI's 2-minute non-streaming API fallback.

---

✨ This PR was created with help from Hikari~ 🌸

Reviewed-on: #233
Co-authored-by: Hikari <hikari@nhcarrigan.com>
Co-committed-by: Hikari <hikari@nhcarrigan.com>

src/lib/stores/claude.ts

@@ -22,6 +22,7 @@ export const claudeStore = {
   terminalLines: conversationsStore.terminalLines,
   pendingPermission: conversationsStore.pendingPermission,
   pendingQuestion: conversationsStore.pendingQuestion,
+  pendingElicitation: conversationsStore.pendingElicitation,
   isProcessing: conversationsStore.isProcessing,
   grantedTools: conversationsStore.grantedTools,
   pendingRetryMessage: conversationsStore.pendingRetryMessage,
@@ -57,6 +58,10 @@ export const claudeStore = {
   clearQuestion: conversationsStore.clearQuestion,
   requestQuestionForConversation: conversationsStore.requestQuestionForConversation,
   clearQuestionForConversation: conversationsStore.clearQuestionForConversation,
+  requestElicitation: conversationsStore.requestElicitation,
+  clearElicitation: conversationsStore.clearElicitation,
+  requestElicitationForConversation: conversationsStore.requestElicitationForConversation,
+  clearElicitationForConversation: conversationsStore.clearElicitationForConversation,
   grantTool: conversationsStore.grantTool,
   revokeAllTools: conversationsStore.revokeAllTools,
   isToolGranted: conversationsStore.isToolGranted,
@@ -126,6 +131,12 @@ export const hasQuestionPending = derived(
   ($conversation) => $conversation?.pendingQuestion !== null
 );
 
+export const hasElicitationPending = derived(
+  claudeStore.activeConversation,
+  ($conversation) =>
+    $conversation?.pendingElicitation !== null && $conversation?.pendingElicitation !== undefined
+);
+
 // Derived store to check if Claude is currently processing (can be interrupted)
 export const isClaudeProcessing = derived(
   [claudeStore.connectionStatus, characterState],

src/lib/stores/conversations.ts

@@ -2,6 +2,7 @@ import { writable, derived, get } from "svelte/store";
 import type {
   TerminalLine,
   ConnectionStatus,
+  ElicitationEvent,
   PermissionRequest,
   UserQuestionEvent,
   Attachment,
@@ -32,6 +33,7 @@ export interface Conversation {
   grantedTools: Set<string>;
   pendingPermissions: PermissionRequest[];
   pendingQuestion: UserQuestionEvent | null;
+  pendingElicitation: ElicitationEvent | null;
   scrollPosition: number;
   createdAt: Date;
   lastActivityAt: Date;
@@ -157,6 +159,7 @@ function createConversationsStore() {
       grantedTools: new Set(),
       pendingPermissions: [],
       pendingQuestion: null,
+      pendingElicitation: null,
       scrollPosition: -1, // -1 means "scroll to bottom" (auto-scroll)
       createdAt: new Date(),
       lastActivityAt: new Date(),
@@ -221,6 +224,10 @@ function createConversationsStore() {
     ($conv) => $conv?.pendingPermissions || []
   );
   const pendingQuestion = derived(activeConversation, ($conv) => $conv?.pendingQuestion || null);
+  const pendingElicitation = derived(
+    activeConversation,
+    ($conv) => $conv?.pendingElicitation ?? null
+  );
   const scrollPosition = derived(activeConversation, ($conv) => $conv?.scrollPosition ?? -1);
   const attachments = derived(activeConversation, ($conv) => $conv?.attachments || []);
   const worktreeInfo = derived(activeConversation, ($conv) => $conv?.worktreeInfo ?? null);
@@ -234,6 +241,7 @@ function createConversationsStore() {
     pendingPermission: { subscribe: pendingPermission.subscribe },
     pendingPermissions: { subscribe: pendingPermissions.subscribe },
     pendingQuestion: { subscribe: pendingQuestion.subscribe },
+    pendingElicitation: { subscribe: pendingElicitation.subscribe },
     isProcessing: { subscribe: isProcessing.subscribe },
     grantedTools: { subscribe: grantedTools.subscribe },
     pendingRetryMessage: { subscribe: pendingRetryMessage.subscribe },
@@ -399,6 +407,52 @@ function createConversationsStore() {
         return convs;
       });
     },
+    requestElicitation: (elicitation: ElicitationEvent) => {
+      const activeId = get(activeConversationId);
+      if (!activeId) return;
+
+      conversations.update((convs) => {
+        const conv = convs.get(activeId);
+        if (conv) {
+          conv.pendingElicitation = elicitation;
+          conv.lastActivityAt = new Date();
+        }
+        return convs;
+      });
+    },
+    clearElicitation: () => {
+      const activeId = get(activeConversationId);
+      if (!activeId) return;
+
+      conversations.update((convs) => {
+        const conv = convs.get(activeId);
+        if (conv) {
+          conv.pendingElicitation = null;
+          conv.lastActivityAt = new Date();
+        }
+        return convs;
+      });
+    },
+    requestElicitationForConversation: (conversationId: string, elicitation: ElicitationEvent) => {
+      conversations.update((convs) => {
+        const conv = convs.get(conversationId);
+        if (conv) {
+          conv.pendingElicitation = elicitation;
+          conv.lastActivityAt = new Date();
+        }
+        return convs;
+      });
+    },
+    clearElicitationForConversation: (conversationId: string) => {
+      conversations.update((convs) => {
+        const conv = convs.get(conversationId);
+        if (conv) {
+          conv.pendingElicitation = null;
+          conv.lastActivityAt = new Date();
+        }
+        return convs;
+      });
+    },
     setPendingRetryMessage: (message: string | null) => pendingRetryMessage.set(message),
 
     // Conversation management

src/lib/stores/toasts.test.ts

@@ -187,6 +187,33 @@ describe("toastStore", () => {
     });
   });
 
+  describe("addError", () => {
+    it("adds an error toast with the warning icon", () => {
+      toastStore.addError("Something went wrong");
+      const toasts = get(toastStore);
+      expect(toasts).toHaveLength(1);
+      const toast = toasts[0];
+      expect(toast.kind).toBe("info");
+      if (toast.kind === "info") {
+        expect(toast.message).toBe("Something went wrong");
+        expect(toast.icon).toBe("⚠️");
+        expect(typeof toast.id).toBe("string");
+        expect(toast.id.length).toBeGreaterThan(0);
+      }
+    });
+
+    it("auto-dismisses after 6000ms", () => {
+      toastStore.addError("Rate limit reached");
+      expect(get(toastStore)).toHaveLength(1);
+
+      vi.advanceTimersByTime(5999);
+      expect(get(toastStore)).toHaveLength(1);
+
+      vi.advanceTimersByTime(1);
+      expect(get(toastStore)).toHaveLength(0);
+    });
+  });
+
   describe("addUpdate", () => {
     it("adds a persistent update toast with the correct fields", () => {
       toastStore.addUpdate("2.0.0", "1.9.0", "https://example.com/release");

src/lib/stores/toasts.ts

@@ -68,6 +68,13 @@ function createToastStore() {
     setTimeout(() => remove(id), 4000);
   }
 
+  function addError(message: string) {
+    const id = crypto.randomUUID();
+    const toast: InfoToast = { id, kind: "info", message, icon: "⚠️" };
+    update((toasts) => [...toasts, toast]);
+    setTimeout(() => remove(id), 6000);
+  }
+
   function addAchievement(achievement: AchievementUnlockedEvent["achievement"]) {
     const id = crypto.randomUUID();
     const toast: AchievementToast = { id, kind: "achievement", achievement };
@@ -82,7 +89,7 @@ function createToastStore() {
     // Update toasts are persistent — no auto-dismiss
   }
 
-  return { subscribe, addInfo, addAchievement, addUpdate, remove };
+  return { subscribe, addInfo, addError, addAchievement, addUpdate, remove };
 }
 
 export const toastStore = createToastStore();