feat: stats and achievements (#45)

### Explanation

_No response_

### Issue

Closes #39

### Attestations

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- [ ] I have read and agree to the [Community Guidelines](https://docs.nhcarrigan.com/community/guide/).
- [ ] My contribution complies with the [Contributor Covenant](https://docs.nhcarrigan.com/dev/covenant/).

### Dependencies

- [ ] I have pinned the dependencies to a specific patch version.

### Style

- [ ] I have run the linter and resolved any errors.
- [ ] My pull request uses an appropriate title, matching the conventional commit standards.
- [ ] My scope of feat/fix/chore/etc. correctly matches the nature of changes in my pull request.

### Tests

- [ ] My contribution adds new code, and I have added tests to cover it.
- [ ] My contribution modifies existing code, and I have updated the tests to reflect these changes.
- [ ] All new and existing tests pass locally with my changes.
- [ ] Code coverage remains at or above the configured threshold.

### Documentation

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### Versioning

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Reviewed-on: #45
Co-authored-by: Naomi Carrigan <commits@nhcarrigan.com>
Co-committed-by: Naomi Carrigan <commits@nhcarrigan.com>

src/lib/tauri.ts

@@ -3,6 +3,8 @@ import { invoke } from "@tauri-apps/api/core";
 import { claudeStore } from "$lib/stores/claude";
 import { characterState } from "$lib/stores/character";
 import { configStore } from "$lib/stores/config";
+import { initStatsListener, resetSessionStats } from "$lib/stores/stats";
+import { initAchievementsListener } from "$lib/stores/achievements";
 import type { ConnectionStatus, PermissionPromptEvent } from "$lib/types/messages";
 import type { CharacterState } from "$lib/types/states";
 import {
@@ -76,6 +78,12 @@ export async function initializeTauriListeners() {
   // Initialize notification rules
   initializeNotificationRules();
 
+  // Initialize stats listener
+  await initStatsListener();
+
+  // Initialize achievements listener
+  await initAchievementsListener();
+
   const connectionUnlisten = await listen<string>("claude:connection", async (event) => {
     const status = event.payload as ConnectionStatus;
     claudeStore.setConnectionStatus(status);
@@ -88,6 +96,7 @@ export async function initializeTauriListeners() {
       characterState.setState("idle");
       if (!hasConnectedThisSession) {
         hasConnectedThisSession = true;
+        resetSessionStats(); // Reset session stats on new connection
         await sendGreeting();
       }
     } else if (status === "disconnected") {