fix: assorted bug fixes for lists, sounds, interrupts, and permissions (#173)

## Summary

- **Markdown lists**: Explicitly set `list-style-type: disc` / `decimal` in the Markdown renderer — Tauri's WebView strips browser defaults, leaving bullets and numbers invisible.
- **Notification sounds**: Moved all per-task sounds (success, error, permission, task-start) from a global `characterState` subscription into the per-conversation `claude:state` event handler, so background tabs receive their sounds correctly and tab-switching never replays a sound that already fired. Closes #172
- **Draft text**: Persists `inputValue` per conversation tab so a half-typed prompt survives switching to another tab and back.
- **Interrupt messages**: Replaced vague "Process interrupted" / "Disconnected" strings with source-specific descriptions (keyboard shortcut, stop button, unexpected crash) so it's clear what actually happened.
- **Silent prompt loss**: When Claude Code exits whilst a prompt is in-flight, emits a visible error line telling the user their last prompt was not processed and to reconnect and retry.
- **Double disconnect**: Added an `intentional_stop` flag to `WslBridge` so that `stop()` / `interrupt()` — which kill the process themselves — suppress the duplicate "Disconnected unexpectedly" message that `handle_stdout`'s EOF path was also emitting.
- **Permission modal**: Fixed two cooperating reactivity bugs — `pendingPermissions` was mutated in-place (`.push()`), causing Svelte's derived-store chain to receive the same array reference and skip re-rendering; `PermissionModal.svelte` also used `$state()` (runes mode) where plain `let` is required for correct store-subscription reactivity.

## Test plan

- [ ] Unordered and ordered lists render with visible bullets and numbers in the chat terminal
- [ ] Completion sound plays once when a background tab finishes; switching back to that tab does not replay it
- [ ] Sounds for error, permission request, and task-start also play for background tabs and do not replay on tab switch
- [ ] Typing a prompt, switching tabs, and switching back restores the draft text
- [ ] Pressing Ctrl+C shows "keyboard shortcut (Ctrl+C)"; clicking the stop button shows "via stop button"
- [ ] If Claude exits mid-request, an error message appears prompting the user to resend
- [ ] Clicking stop or pressing Ctrl+C produces exactly one disconnect message (not two)
- [ ] When a tool requires permission, the permission modal appears and the user can approve or dismiss it

✨ This PR was created with help from Hikari~ 🌸

Reviewed-on: #173
Co-authored-by: Hikari <hikari@nhcarrigan.com>
Co-committed-by: Hikari <hikari@nhcarrigan.com>

src/lib/stores/claude.ts

@@ -60,6 +60,15 @@ export const claudeStore = {
   isToolGranted: conversationsStore.isToolGranted,
   setPendingRetryMessage: conversationsStore.setPendingRetryMessage,
 
+  // Sound tracking
+  resetSoundState: conversationsStore.resetSoundState,
+  setTaskStartTime: conversationsStore.setTaskStartTime,
+  markSuccessSoundFired: conversationsStore.markSuccessSoundFired,
+  markTaskStartSoundFired: conversationsStore.markTaskStartSoundFired,
+
+  // Draft text (per-tab input persistence)
+  setDraftText: conversationsStore.setDraftText,
+
   // Conversation management
   createConversation: conversationsStore.createConversation,
   deleteConversation: conversationsStore.deleteConversation,

src/lib/stores/conversations.test.ts

@@ -523,3 +523,41 @@ describe("pending retry message", () => {
     expect(pendingRetryMessage).toBeNull();
   });
 });
+
+describe("draft text persistence", () => {
+  it("initialises draft text as empty string", () => {
+    const conversation = { draftText: "" };
+    expect(conversation.draftText).toBe("");
+  });
+
+  it("stores draft text per conversation", () => {
+    const conversations = new Map([
+      ["conv-1", { draftText: "Hello world" }],
+      ["conv-2", { draftText: "" }],
+    ]);
+
+    expect(conversations.get("conv-1")?.draftText).toBe("Hello world");
+    expect(conversations.get("conv-2")?.draftText).toBe("");
+  });
+
+  it("updates draft text independently per conversation", () => {
+    const conversations = new Map([
+      ["conv-1", { draftText: "Draft A" }],
+      ["conv-2", { draftText: "Draft B" }],
+    ]);
+
+    const convA = conversations.get("conv-1");
+    if (convA) convA.draftText = "Updated A";
+
+    expect(conversations.get("conv-1")?.draftText).toBe("Updated A");
+    expect(conversations.get("conv-2")?.draftText).toBe("Draft B");
+  });
+
+  it("clears draft text after submission", () => {
+    const conversation = { draftText: "My prompt" };
+
+    conversation.draftText = "";
+
+    expect(conversation.draftText).toBe("");
+  });
+});

src/lib/stores/conversations.ts

@@ -37,6 +37,10 @@ export interface Conversation {
   attachments: Attachment[];
   summary: ConversationSummary | null;
   startedAt: Date;
+  taskStartTime: number | null;
+  successSoundFired: boolean;
+  taskStartSoundFired: boolean;
+  draftText: string;
 }
 
 function createConversationsStore() {
@@ -75,6 +79,10 @@ function createConversationsStore() {
       attachments: [],
       summary: null,
       startedAt: new Date(),
+      taskStartTime: null,
+      successSoundFired: false,
+      taskStartSoundFired: false,
+      draftText: "",
     };
   }
 
@@ -196,7 +204,7 @@ function createConversationsStore() {
       conversations.update((convs) => {
         const conv = convs.get(activeId);
         if (conv) {
-          conv.pendingPermissions.push(request);
+          conv.pendingPermissions = [...conv.pendingPermissions, request];
           conv.lastActivityAt = new Date();
         }
         return convs;
@@ -219,7 +227,7 @@ function createConversationsStore() {
       conversations.update((convs) => {
         const conv = convs.get(conversationId);
         if (conv) {
-          conv.pendingPermissions.push(request);
+          conv.pendingPermissions = [...conv.pendingPermissions, request];
           conv.lastActivityAt = new Date();
         }
         return convs;
@@ -364,9 +372,15 @@ function createConversationsStore() {
       if (currentId !== id) {
         activeConversationId.set(id);
 
-        // Update the global character state to match the conversation's state
+        // Update the global character state to match the conversation's state.
+        // Map success/error → idle since those are transient states that have
+        // already been displayed — restoring them would re-trigger sound rules.
         if (targetConv) {
-          characterState.setState(targetConv.characterState);
+          const stateToRestore =
+            targetConv.characterState === "success" || targetConv.characterState === "error"
+              ? "idle"
+              : targetConv.characterState;
+          characterState.setState(stateToRestore);
         }
       }
     },
@@ -816,6 +830,59 @@ function createConversationsStore() {
       });
     },
 
+    // Sound tracking methods
+    resetSoundState: (conversationId: string) => {
+      conversations.update((convs) => {
+        const conv = convs.get(conversationId);
+        if (conv) {
+          conv.taskStartTime = null;
+          conv.successSoundFired = false;
+          conv.taskStartSoundFired = false;
+        }
+        return convs;
+      });
+    },
+
+    setTaskStartTime: (conversationId: string, time: number | null) => {
+      conversations.update((convs) => {
+        const conv = convs.get(conversationId);
+        if (conv) {
+          conv.taskStartTime = time;
+        }
+        return convs;
+      });
+    },
+
+    markSuccessSoundFired: (conversationId: string) => {
+      conversations.update((convs) => {
+        const conv = convs.get(conversationId);
+        if (conv) {
+          conv.successSoundFired = true;
+        }
+        return convs;
+      });
+    },
+
+    markTaskStartSoundFired: (conversationId: string) => {
+      conversations.update((convs) => {
+        const conv = convs.get(conversationId);
+        if (conv) {
+          conv.taskStartSoundFired = true;
+        }
+        return convs;
+      });
+    },
+
+    setDraftText: (conversationId: string, text: string) => {
+      conversations.update((convs) => {
+        const conv = convs.get(conversationId);
+        if (conv) {
+          conv.draftText = text;
+        }
+        return convs;
+      });
+    },
+
     // Add initialization helper
     initialize: () => {
       ensureInitialized();