ci: rename test job to continuous-integration to match main branch protection

.github/workflows/test.yml

@@ -7,11 +7,11 @@ on:
     branches: [main, dev]
 
 jobs:
-  test:
+  # Job name MUST stay "continuous-integration": the main branch protection
+  # requires a status check with exactly this name (see PLAN.md Repository
+  # State). Without a matrix, GitHub reports the check as the bare job name.
+  continuous-integration:
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        python-version: ["3.12"]
 
     steps:
       - uses: actions/checkout@v4
@@ -21,8 +21,8 @@ jobs:
         with:
           enable-cache: true
 
-      - name: Set up Python ${{ matrix.python-version }}
-        run: uv python install ${{ matrix.python-version }}
+      - name: Set up Python 3.12
+        run: uv python install 3.12
 
       - name: Install dependencies
         run: uv sync --dev

CHANGELOG.md

@@ -13,6 +13,7 @@ Maintenance rule: **every PR merged into `dev` must add its entry under `Unrelea
 
 ### Changed
 
+- **CI check-name fix** (this PR): `test.yml` job renamed `test` → `continuous-integration` (matrix removed, Python 3.12 pinned) so the reported status check matches the `main` branch-protection requirement exactly — previously the protection waited on a non-existent `continuous-integration` check while the actual `test (3.12)` passed, blocking release PRs.
 - **README consolidation** (this PR): root keeps only `README.md` (English) + `README.zh-CN.md`; the other 8 locale READMEs moved to `docs/README/` (archived via `git mv`, history preserved, links kept from the switchers; no longer force-synced with the English README). Language switchers updated in all 10 files — current language bold, others linked (`../` for the archived copies).
 
 ## [0.1.1] - 2026-08-06