chore(ci): run CI on push to feature branches

Add conventional-prefix branch patterns to on.push.branches so
CI triggers immediately on feat/**, fix/**, refactor/**, chore/**,
docs/**, perf/**, test/**, hotfix/** pushes без waiting for PR.

Side effects:
- Double-run при PR (push + pull_request events) — acceptable, capacity=2
- Не trigger'ит на experimental/wip/temp branches (no prefix) — intentional

.github/workflows/ci.yml

@@ -2,7 +2,16 @@ name: CI
 
 on:
   push:
-    branches: [main]
+    branches:
+      - main
+      - 'feat/**'
+      - 'fix/**'
+      - 'refactor/**'
+      - 'chore/**'
+      - 'docs/**'
+      - 'perf/**'
+      - 'test/**'
+      - 'hotfix/**'
   pull_request:
     branches: [main]