fix(trips): default to 7-day window when dates are omitted on creation

- No dates → tomorrow to tomorrow+7d
- Start only → end = start+7d
- End only → start = end-7d
- Both provided → unchanged

fix(ci): include client/package-lock.json in version bump commit

.github/workflows/docker.yml

@@ -58,7 +58,7 @@ jobs:
           # Commit and tag
           git config user.name "github-actions[bot]"
           git config user.email "github-actions[bot]@users.noreply.github.com"
-          git add server/package.json server/package-lock.json client/package.json
+          git add server/package.json server/package-lock.json client/package.json client/package-lock.json
           git commit -m "chore: bump version to $NEW_VERSION [skip ci]"
           git tag "v$NEW_VERSION"
           git push origin main --follow-tags