ci: include uv lock freshness in full validation

.github/workflows/tests.yml

@@ -72,6 +72,10 @@ jobs:
         uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
         with:
           python-version: "3.13"
+      - name: Set up uv
+        uses: astral-sh/setup-uv@bec219d24cd3e171d82865faccec33120bb574f4 # v10.1.0
+        with:
+          version: "0.12.8"
       - name: Install quality dependencies
         run: python -m pip install ".[dev,typer,quality]"
       - name: Validate repository baseline

CHANGELOG.md

@@ -11,6 +11,10 @@ and versions are tracked in the repo-root `VERSION` file.
 
 - Continue compatibility hardening and adoption work for the next release.
 
+### Changed
+
+- Include `uv.lock` freshness in the authoritative local validation aggregate (#424).
+
 ## [0.5.0] - 2026-10-03
 
 ### Added

tests/full_validate.sh

@@ -25,7 +25,9 @@ require_commands() {
 }
 
 run_baseline() {
+  require_commands uv
   bash ./tests/validate.sh
+  uv lock --check
 }
 
 run_runtime() {