Greptile Summary

This PR adds Android notification listener support to OpenClaw, enabling the AI agent to read device notifications through a new notifications.list command.

Implementation:

• Adds DeviceNotificationListenerService extending Android's NotificationListenerService to capture notifications
• Implements thread-safe DeviceNotificationStore singleton to maintain notification state
• Creates NotificationsHandler to handle notifications.list invoke requests with proper permission checks
• Registers the command in Android's protocol constants, command registry, and dispatcher
• Exposes notifications_list action in the nodes agent tool
• Includes notifications.list in Android's default gateway allowlist

Key Design Decisions:

• Command is always advertised (not gated by feature flag) but returns clear error if permissions not granted, guiding users to enable access
• Text fields are sanitized and truncated to 512 chars to prevent large payloads
• Service rebind is attempted when listener is disconnected
• Thread-safe singleton store with proper synchronization on all operations
• Store is cleared when service disconnects to maintain consistency

Test Coverage:
All layers are tested including Android protocol constants, command registry, gateway allowlist, and nodes tool integration.

Confidence Score: 5/5

• This PR is safe to merge with no issues found
• The implementation is well-structured, follows existing patterns in the codebase, includes proper error handling and thread safety, has comprehensive test coverage across all layers, and includes appropriate security measures like text sanitization
• No files require special attention

_{Last reviewed commit: b030d61}

Landed via temp rebase onto main.

• Gate: pnpm check && pnpm build && pnpm test (failed in unrelated suites: src/docker-setup.test.ts, test/scripts/ios-team-id.test.ts)
• Land commit: 37f5f08
• Merge commit: da6a96e

Thanks @obviyus!