Add initial configuration files for Home Assistant setup

- Created automations.yaml, configuration.yaml, scenes.yaml, scripts.yaml, and secrets.yaml.
- configuration.yaml includes default integrations, HTTP server settings, recorder configuration, frontend theme loading, and includes for automations, scripts, and scenes.
- secrets.yaml contains a PostgreSQL connection string for database access.

configuration.yaml

@@ -0,0 +1,32 @@
+
+# Loads default set of integrations. Do not remove.
+default_config:
+
+http:
+  server_port: 443
+  ssl_certificate: /ssl/fullchain.pem
+  ssl_key: /ssl/privkey.pem
+
+recorder:
+  db_url: !secret psql_string
+  db_retry_wait: 15 # Wait 15 seconds before retrying
+  exclude:
+    domains:
+      - automation
+      - updater
+    entity_globs:
+      - sensor.weather_*
+    entities:
+      - sun.sun # Don't record sun data
+      - sensor.last_boot # Comes from 'systemmonitor' sensor platform
+      - sensor.date
+    event_types:
+      - call_service # Don't record service calls
+
+# Load frontend themes from the themes folder
+frontend:
+  themes: !include_dir_merge_named themes
+
+automation: !include automations.yaml
+script: !include scripts.yaml
+scene: !include scenes.yaml