20260908-2038-prune-tracking-records Prune completed task and plan records and rebuild the PMA indexes

• status: completed
• createdAt: 2026-09-08 20:38
• approvedAt: 2026-09-08 20:38
• relatedTask: 20260908-2038-prune-tracking-records

Context

docs/task/ holds 37 records (34 completed) and docs/plan/ 36 (34 completed); both indexes still use the legacy PLAN-NNN wording and mix three ID styles. Retained open records reference pruned ones only in prose, except the blocked by line of RESEARCH-008, which names PLAN-023. No document under bizplan/ or docs/architecture.md links to a task or plan file.

Proposal

1. Delete every [x] detail file in both directories.
2. Rewrite both indexes on the canonical templates from the PMA skill, listing the retained open records plus this task and plan.
3. Update the RESEARCH-008 dependency line to note that PLAN-023 was completed and pruned.
4. Record every pruned ID and title in docs/changelog.md; verify with bun run docs:build and git diff --check; commit.

Risks

• History for pruned records now lives only in git and the changelog summary; the site sidebar shrinks accordingly.
• The in-progress yacht-circuit-evidence records belong to another session and are left untouched.

Scope

• Deleted: 34 task and 34 plan files. Modified: two index files, RESEARCH-008, changelog. Added: this task and plan.

Alternatives

• Keep completed records and only rebuild the indexes: rejected by the user's instruction to clean them out.

Annotations

• 2026-09-08 20:38: User instruction taken as approval; implementing.
• 2026-09-08 20:38: Completed; see changelog for the pruned list.