ci(crewing): match the whole stack with a feat/crewing-* glob

Replace the per-branch PR-checks trigger ([master, feat/crewing-foundations])
with [master, "feat/crewing-*"] so every branch in the stacked crewing series
(foundations → requisitions → candidates → …) runs the same hard gates without
adding each one by hand. The workflow is evaluated from the branch under test,
so the glob is propagated down the stack.

.forgejo/workflows/pr-checks.yml

@@ -1,20 +1,22 @@
 name: PR checks
 
 # Enforces the contribution policy on every PR into master — plus the crewing
-# integration branch (feat/crewing-foundations), which collects the stacked,
-# feature-flagged crewing phases before they merge to master. Same hard gates:
+# stack branches (feat/crewing-*), which collect the stacked, feature-flagged
+# crewing phases (foundations → requisitions → candidates → …) before they merge
+# to master. Same hard gates:
 #   - code changes must ship with tests (docs/config/automation are exempt)
 #   - type-check is clean across the whole project (tests included)
 #   - unit tests pass
 #   - integration tests pass against an ephemeral Postgres (migrate + seed)
 # Runs on the pms1 host runner. See automation/README.md > "Contribution policy".
 #
-# Note: for pull_request events the workflow is read from the BASE branch, so a
-# base must appear in this list for its incoming PRs to be checked.
+# Note: the workflow is evaluated from the branch under test, so the trigger list
+# must match it. The feat/crewing-* glob covers every branch in the stack so each
+# stacked phase PR is checked without further edits to this file.
 
 on:
   pull_request:
-    branches: [master, feat/crewing-foundations]
+    branches: [master, "feat/crewing-*"]
 
 jobs:
   checks: