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/notifications/rules.ts

@@ -1,52 +1,8 @@
-import { characterState } from "$lib/stores/character";
 import { notificationManager } from "./notificationManager";
-import type { CharacterState } from "$lib/types/states";
 import type { ConnectionStatus } from "$lib/types/messages";
 
-// Track previous states to detect transitions
-let previousCharacterState: CharacterState | null = null;
+// Track previous connection status to detect transitions
 let previousConnectionStatus: ConnectionStatus | null = null;
-let taskStartTime: number | null = null;
-let hasNotifiedTaskStart = false;
-
-export function handleCharacterStateChange(newState: CharacterState): void {
-  // Detect state transitions
-  if (previousCharacterState === newState) return;
-
-  // Task completion: any state -> success
-  if (newState === "success" && previousCharacterState !== null) {
-    const taskDuration = taskStartTime ? Date.now() - taskStartTime : 0;
-    // Only notify for tasks that took more than 2 seconds
-    if (taskDuration > 2000) {
-      notificationManager.notifySuccess();
-    }
-    taskStartTime = null;
-  }
-
-  // Error occurred
-  if (newState === "error" && previousCharacterState !== "error") {
-    notificationManager.notifyError();
-  }
-
-  // Permission needed
-  if (newState === "permission") {
-    notificationManager.notifyPermission();
-  }
-
-  // Starting long tasks - only notify once per response
-  if (
-    (newState === "coding" || newState === "searching") &&
-    previousCharacterState !== "coding" &&
-    previousCharacterState !== "searching" &&
-    !hasNotifiedTaskStart
-  ) {
-    taskStartTime = Date.now();
-    hasNotifiedTaskStart = true;
-    notificationManager.notifyTaskStart();
-  }
-
-  previousCharacterState = newState;
-}
 
 export function handleConnectionStatusChange(newStatus: ConnectionStatus): void {
   // Only notify on successful connection after being disconnected
@@ -67,37 +23,13 @@ export function handleToolExecution(_toolName: string): void {
   // But we could add specific rules here if needed
 }
 
-// Reset notification state for a new response
-export function handleNewUserMessage(): void {
-  hasNotifiedTaskStart = false;
-}
+// No-op: sound tracking is now per-conversation in tauri.ts
+export function handleNewUserMessage(): void {}
 
-// Store unsubscribe functions
-let unsubscribeCharacterState: (() => void) | null = null;
+// No-op: all per-conversation sounds are driven by tauri.ts event listeners
+export function initializeNotificationRules(): void {}
 
-// Initialize listeners
-export function initializeNotificationRules(): void {
-  // Clean up any existing subscriptions first
-  cleanupNotificationRules();
-
-  // Subscribe to character state changes
-  unsubscribeCharacterState = characterState.subscribe((state) => {
-    handleCharacterStateChange(state);
-  });
-
-  // We'll connect to connection status in the next step
-}
-
-// Cleanup function to prevent duplicate listeners
+// Cleanup — reset connection tracking on teardown
 export function cleanupNotificationRules(): void {
-  if (unsubscribeCharacterState) {
-    unsubscribeCharacterState();
-    unsubscribeCharacterState = null;
-  }
-
-  // Reset state tracking
-  previousCharacterState = null;
   previousConnectionStatus = null;
-  taskStartTime = null;
-  hasNotifiedTaskStart = false;
 }