# 2026-09-19 — Qingtian PAL Development Summary

## Status
Today’s PAL development is closed at Gate v0.1.5.

## Completed Gates
- Foundation Discovery — PASS
- Gate v0.1.1 Repository Bootstrap — PASS
- Gate v0.1.2 Isolated Python Toolchain Bootstrap — PASS
- Gate v0.1.3 PAL Core Skeleton — PASS
- Gate v0.1.4 Device Registration, Heartbeat & Session Lifecycle — PASS
- Gate v0.1.5 Device Authentication & Enrollment Foundation — PASS

## Latest Accepted Checkpoint
- Repository: /home/foo/qingtian-pal
- Branch: main
- Git commit: 0f7781461627999013f27143f140ab8cc66ec3f8
- Worktree: CLEAN
- Tests: 39 passed / 0 failed

## PAL Capabilities Reached
PAL Core now has:
- authoritative PAL state coordination
- presence states
- activity states
- sun/human form policy
- WebSocket lifecycle events
- device registry
- server-issued immutable device UUID
- heartbeat handling
- server-derived online / away / offline presence
- session creation and closure
- deterministic active device/session handling
- one-time enrollment authority foundation
- cryptographically generated device credentials
- credential verification
- device authentication and authorization
- credential/device revocation
- session revocation

## Security / Production Status
- Persistent credentials created: NO
- Real production credentials created: NO
- Real network listener started: NO
- New dependencies: NO
- Production integration accessed: NO
- Secrets written to disk: NO
- Production modified: NO
- Docker permissions changed: NO
- Docker group membership changed: NO

## Production Verification During v0.1.4
Pre-flight and post-flight Docker telemetry matched exactly for:
- homeassistant
- remoteoffice
- qingtian-mcp

All three remained running with the same container IDs, same StartedAt timestamps and RestartCount=0.

## Stop Point
Do not begin Gate v0.1.6 today.

Tomorrow continue with:

Gate v0.1.6A — Persistent PAL State & Credential Store Design

This should be DESIGN ONLY first:
- decide what PAL state must persist
- decide what must never persist
- credential verification material storage design
- SQLite/schema design
- file ownership and permissions
- atomicity/recovery
- backup implications
- migration/versioning strategy

No database should be created until the design has been reviewed and accepted.