Post-release retrospective: update DeveloperGuide.md promotion workflow,
clean up ai/AGENTS.md, update session log with customer confirmation.
- docs/DeveloperGuide.md: rewrite 'Promoting dev -> main' section to match
actual practice (p4 switch, p4 copy -n dry run, and the previously
undocumented requirement to rebuild+submit binaries in main afterward
since bin/ is isolated per-stream).
- ai/AGENTS.md: remove stale task-specific content (old NEW REQUIREMENTS
list, stale 'Current Project State as of CL 32835'); replace with an
evergreen structure (Current Status, Background Info, Quick Start, Key
Files, Version Control Interaction, ai/ folder) that stays useful across
future sessions. Current Status now notes v1.0.4 released to main and
customer-confirmed fix for the p4lf.service startup issue (P4LF-3).
- ai/session_log_2026-08-25.md: document the dev->main release walkthrough
and the customer's confirmation that the fix resolved their issue.