Fix release workflow and dashboard CSV plots

.github/CONTRIBUTING.md

@@ -4,4 +4,11 @@ Please make sure that introduced changes are consistent with the testing api and
 
 ## Updating the versioning
 
-Please add to `changelog.yaml` and then run `make changelog` before committing the results ONCE in this PR.
+Add a towncrier fragment under `changelog.d/` with the format
+`<short-description>.<type>.md`, where `<type>` is one of `added`,
+`changed`, `fixed`, `removed`, or `breaking`.
+
+Do not edit `CHANGELOG.md` directly in feature PRs. After the PR is merged,
+the versioning workflow runs `make changelog`, deletes the consumed fragments,
+updates `CHANGELOG.md`, bumps `pyproject.toml`, and commits the result as
+`Update package version`.

.github/fetch_version.py

@@ -0,0 +1,12 @@
+# Note: Action must be run in Python 3.11 or later.
+import tomllib
+
+
+def fetch_version():
+    with open("pyproject.toml", "rb") as f:
+        pyproject = tomllib.load(f)
+    return pyproject["project"]["version"]
+
+
+if __name__ == "__main__":
+    print(fetch_version())

.github/workflows/changelog_entry.yaml

@@ -10,12 +10,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+      - uses: actions/setup-python@v6
+        with:
+          python-version: "3.14"
+      - name: Install towncrier
+        run: pip install towncrier
       - name: Check for changelog fragment
-        run: |
-          FRAGMENTS=$(find changelog.d -type f ! -name '.gitkeep' | wc -l)
-          if [ "$FRAGMENTS" -eq 0 ]; then
-            echo "::error::No changelog fragment found in changelog.d/"
-            echo "Add one with: echo 'Description.' > changelog.d/\$(git branch --show-current).<type>.md"
-            echo "Types: added, changed, fixed, removed, breaking"
-            exit 1
-          fi
+        run: towncrier check --compare-with origin/main

.github/workflows/versioning.yaml

@@ -1,15 +1,10 @@
-# Workflow that runs on versioning metadata updates.
+# Workflow that bumps the package version after changes land on main.
 
 name: Versioning updates
 on:
   push:
-      branches:
-        - main
-
-      paths:
-        - "changelog.d/**"
-        - "CHANGELOG.md"
-        - "!pyproject.toml"
+    branches:
+      - main
 
 jobs:
     Versioning:
@@ -32,11 +27,15 @@ jobs:
               uses: actions/setup-python@v6
               with:
                 python-version: 3.14
+            - name: Install uv
+              uses: astral-sh/setup-uv@v8.1.0
             - name: Bump version and build changelog
               run: |
                 pip install towncrier
                 python .github/bump_version.py
-                towncrier build --yes --version $(python -c "import re; print(re.search(r'version = \"(.+?)\"', open('pyproject.toml').read()).group(1))")
+                towncrier build --yes --version $(python .github/fetch_version.py)
+            - name: Update lockfile
+              run: uv lock
             - name: Update changelog
               uses: EndBug/add-and-commit@v10
               with:

changelog.d/release-dashboard-compatibility.fixed.md

@@ -0,0 +1 @@
+Fixed towncrier fragment validation and package versioning workflow triggers, and dashboard CSV compatibility with `metric_std` columns, benchmark-loss error bars, and donor/receiver distribution rows.