feat: add inline time edit and log editing modal

- Add inline time editing in log list (click on time to edit)
- Add edit button with pencil icon for each log entry
- Modify AddLogModal to support both create and edit modes
- Wire up updateLog from useLogs hook in Dashboard

Co-Authored-By: Claude <noreply@anthropic.com>

.gitignore

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+# Dependencies
+node_modules/
+
+# Build output
+dist/
+build/
+
+# Environment files
+.env
+.env.local
+.env.*.local
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Database
+*.db
+*.sqlite
+
+# Documentation
+docs/
+
+# Cache
+.cache/
+.parcel-cache/