Release 5.5.4

Bump package version in setup.py to 5.5.4.

CHANGELOG: document 5.5.4 (full-database restore hardening and backup/restore documentation).

docs/BUILD_CONFIGURATION.md: refresh version-code example and setup.py snippet to 5.5.4 (50504).

CHANGELOG.md

@@ -7,6 +7,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [5.5.4] - 2026-05-11
+
+### Fixed
+
+- **Full database restore** — Admin restore cleanup no longer uses `current_app` from a background thread outside Flask application context. While `restore_backup` runs (archive extract through Alembic upgrade), the app sets `_database_restore_in_progress`; the client portal global context processor skips non-essential database reads during that window and rolls back the session on `SQLAlchemyError` so login and error pages can render when PostgreSQL schema is briefly torn during `pg_restore --clean`.
+
+### Documentation
+
+- **Backup and restore** — Added [docs/admin/BACKUP_AND_RESTORE.md](docs/admin/BACKUP_AND_RESTORE.md) and cross-links from the admin index, [DATABASE_RECOVERY.md](DATABASE_RECOVERY.md), and import/export guides for operational behaviour during restore.
+
 ## [5.5.3] - 2026-05-06
 
 ### Fixed

docs/BUILD_CONFIGURATION.md

@@ -31,7 +31,7 @@ All build scripts automatically sync the version before building.
 
 **Version Code Calculation:**
 - Android version code is calculated as: `major * 10000 + minor * 100 + patch`
-- Example: Version `5.5.2` → version code `50502`
+- Example: Version `5.5.4` → version code `50504`
 
 **Build Scripts:**
 - `scripts/build-mobile.bat` (Windows)
@@ -184,7 +184,7 @@ To update the version for all applications:
    ```python
    setup(
        name='timetracker',
-       version='5.5.2',  # Update here
+       version='5.5.4',  # Update here
        ...
    )
    ```

setup.py

@@ -7,7 +7,7 @@ from setuptools import setup, find_packages
 
 setup(
     name='timetracker',
-    version='5.5.3',
+    version='5.5.4',
     packages=find_packages(),
     include_package_data=True,
     package_data={
@@ -22,4 +22,3 @@ setup(
     ],
     python_requires='>=3.11',
 )
-