Adds the data layer for per-item agent prompts. Markdown frontmatter
gets an `agent_prompt:` block scalar that survives the importer
round-trip (newlines preserved), and `resolveWorkflowPrompt()` walks
task → epic → plan → built-in default returning both the resolved
string and the source level. Walk is slug-based, not parent_id-based,
because the importer leaves parent_id briefly null mid-transaction.
tRPC `backlog.getWorkflowPrompt` returns ownOverride + effectivePrompt
so future UI can render the override box + preview without two
queries. `backlog.updateWorkflowPrompt` is owner/admin-gated (prompts
change downstream Cursor/Claude behavior) and audit-logged on every
write.
UI deferred — apps/web doesn't have a backlog-item detail panel yet;
the existing object-detail panel is for the objects table. Follow-up
filed at Task-workflow-prompt-task-detail-ui.md.
Co-authored-by: Cursor <cursoragent@cursor.com>
The `tasks` Postgres on CT 102 was bootstrapped years ago with
`drizzle-kit push`, which writes schema but skips the ledger. As of
today the ledger contained zero rows and the schema was missing
`markdown_backlog_items` + `cursor_sync_mappings` (migration 0002
ran on neither code path). Migration 0007's ALTER on
markdown_backlog_items had silently failed because of this; audit_log
was added manually.
The one-shot at docs/operations/2026-06-02-db-drift-reconcile.sql
created the two missing tables at the final post-0007 shape (skipping
0002's now-obsolete FK-to-objects intermediate state, which 0003
would have immediately rewritten anyway) and stamped all 8 migrations
with their sha256 + journal `when` so drizzle's
`lastDbMigration.created_at < migration.folderMillis` gate treats
them as already applied.
`pnpm db:migrate` is now a clean no-op against this DB. Future
migrations work normally.
Co-authored-by: Cursor <cursoragent@cursor.com>
