feat: add download toast, e2e permission tests, and update favicons

- Add download toast component with progress indicator and auto-dismiss
- Add download store for managing file download state
- Add e2e tests for permission prompts (allow/deny flows)
- Add global setup for e2e tests with isolated daemon instance
- Update favicon assets with new design
- Refactor agent-stream-view to use shared tool-call-details component
- Simplify file-explorer-pane component
- Clean up unused screenshots and PRODUCTION.md

🤖 Generated with [Claude Code](https://claude.com/claude-code)

packages/app/e2e/helpers/workspace.ts

@@ -13,6 +13,8 @@ export const createTempGitRepo = async (prefix = 'paseo-e2e-'): Promise<TempRepo
 
   execSync('git init', { cwd: repoPath, stdio: 'ignore' });
   await writeFile(path.join(repoPath, 'README.md'), '# Temp Repo\n');
+  execSync('git add README.md', { cwd: repoPath, stdio: 'ignore' });
+  execSync('git commit -m "Initial commit"', { cwd: repoPath, stdio: 'ignore' });
 
   return {
     path: repoPath,