Restructure project following production-ready standards

- Add comprehensive docker-compose configuration with health checks
- Create Makefile with 16 utility commands for easy management
- Implement robust backup/restore/update scripts with error handling
- Add optimized PostgreSQL configuration for Gitea workload
- Enhance .env.example with clear dev/prod sections and documentation
- Create comprehensive README with installation, configuration, and maintenance guides
- Improve .gitignore to exclude all sensitive and generated files
- Add Redis persistence (AOF) and memory limits
- Configure service dependencies with health conditions

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

db-config/postgresql.conf

@@ -0,0 +1,77 @@
+# ============================================
+# Configuration PostgreSQL optimisée pour Gitea
+# ============================================
+# Cette configuration est adaptée pour une instance Gitea
+# avec une charge modérée (petit à moyen serveur)
+
+# CONNEXIONS
+# -------------------------------------------
+max_connections = 100
+superuser_reserved_connections = 3
+
+# MÉMOIRE
+# -------------------------------------------
+# Ajustez selon la RAM disponible
+# Recommandation: 25% de la RAM pour shared_buffers
+shared_buffers = 256MB
+effective_cache_size = 1GB
+maintenance_work_mem = 64MB
+work_mem = 4MB
+
+# WRITE AHEAD LOG (WAL)
+# -------------------------------------------
+wal_buffers = 16MB
+min_wal_size = 1GB
+max_wal_size = 4GB
+checkpoint_completion_target = 0.9
+
+# QUERY TUNING
+# -------------------------------------------
+random_page_cost = 1.1
+effective_io_concurrency = 200
+default_statistics_target = 100
+
+# LOGGING
+# -------------------------------------------
+logging_collector = on
+log_directory = 'log'
+log_filename = 'postgresql-%Y-%m-%d.log'
+log_rotation_age = 1d
+log_rotation_size = 100MB
+log_line_prefix = '%t [%p]: [%l-1] user=%u,db=%d,app=%a,client=%h '
+log_timezone = 'UTC'
+
+# Logs des requêtes lentes (> 1 seconde)
+log_min_duration_statement = 1000
+
+# LOCALE ET FORMATAGE
+# -------------------------------------------
+datestyle = 'iso, mdy'
+timezone = 'UTC'
+lc_messages = 'en_US.utf8'
+lc_monetary = 'en_US.utf8'
+lc_numeric = 'en_US.utf8'
+lc_time = 'en_US.utf8'
+default_text_search_config = 'pg_catalog.english'
+
+# AUTOVACUUM
+# -------------------------------------------
+# Important pour maintenir les performances
+autovacuum = on
+autovacuum_max_workers = 3
+autovacuum_naptime = 1min
+autovacuum_vacuum_threshold = 50
+autovacuum_analyze_threshold = 50
+autovacuum_vacuum_scale_factor = 0.1
+autovacuum_analyze_scale_factor = 0.05
+
+# SÉCURITÉ
+# -------------------------------------------
+# Les connexions sont limitées au réseau Docker
+listen_addresses = '*'
+ssl = off
+
+# AUTRES PARAMÈTRES
+# -------------------------------------------
+shared_preload_libraries = ''
+dynamic_shared_memory_type = posix