replace main with lightweight memory gateway

.gitignore

@@ -1,11 +1,18 @@
-# Local runtime configuration
-config.yaml
-*.local.yaml
-*.secret.yaml
+# Local environment files
 .env
-.env.*
+everos.env
+*.env.local
 
-# Python cache / test artifacts
+# Gateway runtime data
+data/
+storage/
+*.sqlite
+*.sqlite3
+*.db
+*.db-shm
+*.db-wal
+
+# Python caches
 __pycache__/
 *.py[cod]
 .pytest_cache/
@@ -17,13 +24,13 @@ htmlcov/
 # Virtual environments
 .venv/
 venv/
+env/
 
-# Local editor / agent metadata
-.codex
-.DS_Store
+# Packaging output
+build/
+dist/
+*.egg-info/
 
-# Runtime output
+# Logs and local process files
 *.log
-*.tmp
-*.sqlite3
-obsidian-vault/Reviews/
+*.pid