docs: tighten agent memory and retry hygiene

[simple-agent-manager]

Summary

• add retry/dedupe and read-only/liveness guidance to agent task tracking rules
• add periodic memory/idea hygiene guidance and provider-backend-vs-UX completion guardrails
• record the two-week review task and local subagent critique consensus

Durable SAM state updates

• updated policies: read-only/liveness requests stay in-session; failed duplicate task starts require diagnosis before retry
• completed stale credential ideas with verified merge evidence: 01KV0AGSMP20SZP5CHX38G9M03, 01KV30DRD0BH2F4GGG1J7C3V1H
• annotated z.ai/OpenCode and app-deploy ideas with backend/branch status so they remain open where appropriate
• confirmed relevant knowledge observations and added narrow IdeaHygiene observation for backend provider work vs UX completion

Validation

• git diff --check for touched markdown/config files
• local subagent critique before implementation: two completed reviewers reached consensus; third timed out and was closed

Draft PR only per task instructions; do not merge without explicit authorization.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud