Move versioning from Rails initializer to .sure-version file (#1587)

* Extract version to .sure-version file and add Sentry release tracking

Move the hardcoded version string to a `.sure-version` file at the repo
root so it can be read by both the Rails version initializer and other
tooling. Configure `config.release` in the Sentry initializer to tag
errors with the app version.

https://claude.ai/code/session_01KfUgF42B3exoU2vpErqJyW

* Use .sure-version as single source of truth in Helm CI workflows

Update chart-ci, chart-release, and publish workflows to read the app
version from .sure-version instead of regex-parsing version.rb. The
pre-release bump job now writes directly to .sure-version and stages it
for commit.

https://claude.ai/code/session_01KfUgF42B3exoU2vpErqJyW

* Guard empty .sure-version fallback

* fix: sync Helm chart version with .sure-version

* Moving on to `v0.7.1-alpha.*` with this

* Defensive rescue

* Getting fancy with versions now

---------

Signed-off-by: Juan José Mata <juanjo.mata@gmail.com>
Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: SureBot <sure-bot@we-promise.com>
Co-authored-by: sure-admin <sure-admin@splashblot.com>

.github/workflows/publish.yml

@@ -428,7 +428,7 @@ jobs:
 
       - name: Bump pre-release version
         run: |
-           VERSION_FILE="config/initializers/version.rb"
+           VERSION_FILE=".sure-version"
            CHART_FILE="charts/sure/Chart.yaml"
 
            # Ensure version file exists
@@ -444,7 +444,7 @@ jobs:
            fi
  
            # Extract current version
-           CURRENT_VERSION=$(grep -oP '"\K[0-9]+\.[0-9]+\.[0-9]+-(alpha|beta|rc)\.[0-9]+' "$VERSION_FILE")
+           CURRENT_VERSION=$(cat "$VERSION_FILE" | tr -d '[:space:]')
            if [ -z "$CURRENT_VERSION" ]; then
              echo "ERROR: Could not extract version from $VERSION_FILE"
              exit 1
@@ -475,11 +475,11 @@ jobs:
            echo "New version: $NEW_VERSION"
 
            # Update the version file
-           sed -i "s/\"$CURRENT_VERSION\"/\"$NEW_VERSION\"/" "$VERSION_FILE"
+           echo "$NEW_VERSION" > "$VERSION_FILE"
 
            # Verify the change
-           echo "Updated version.rb:"
-           grep "semver" "$VERSION_FILE"
+           echo "Updated .sure-version:"
+           cat "$VERSION_FILE"
 
            # Update Helm chart version and appVersion
            sed -i -E "s/^version: .*/version: ${NEW_VERSION}/" "$CHART_FILE"
@@ -496,7 +496,7 @@ jobs:
           git config user.name "github-actions[bot]"
           git config user.email "github-actions[bot]@users.noreply.github.com"
 
-          git add config/initializers/version.rb
+          git add .sure-version
           git add charts/sure/Chart.yaml
 
           # Check if there are changes to commit