* feat(tasks): search tasks by PR number in command panel
Typing a PR number (e.g. 1243 or #1243) in the Cmd+K panel now surfaces
the task that PR is associated with, alongside the existing
title/description/repo search.
The github store gains a workspace-scoped ListTaskIDsByPRNumber lookup
over github_task_prs; the task service resolves it through an injected
PRTaskResolver interface (github service wired in cmd/kandev) and merges
PR matches into search results, deduped and respecting the
archived/ephemeral/config filters. Keeping the lookup at the service
layer avoids coupling the task repository to the github schema, so
existing search queries and tests are untouched.
* fix(tasks): scope PR-number search to page 1 and unfiltered queries
Address review feedback on PR-number search:
- Only augment results on the first page of an unscoped search. Running
on every page re-prepended the PR match and truncated a real result
off each subsequent page; running under a workflow/repository filter
leaked tasks that don't satisfy the filter.
- Add idx_github_task_prs_pr_number so the lookup is index-backed
instead of a full scan (pr_number is the 3rd column of the existing
UNIQUE constraint, unusable as a leading key).
- Log instead of silently dropping a task when GetTask fails in the
PR-match loop.
* test(github): dedup PR-lookup test setup into shared newTestStore
Add workspace_id to newTestStore's tasks table and drop the near-identical
newTestStoreWithWorkspaces helper, per review feedback.
* perf(tasks): batch-fetch PR-matched tasks instead of N+1 GetTask
Add a repository GetTasksByIDs and use it in augmentWithPRMatches so PR-number
search loads all matched tasks in one query instead of one GetTask per id,
addressing the N+1 noted in review. Fetch+filter is extracted into a
fetchPRMatchedTasks helper that preserves resolver order and dedup.
José Almeida