Revert "feat(server): Override PG password in dockerfile (#143)"

This reverts commit b364cab.

Author: lan17

README.md

@@ -75,15 +75,6 @@ export AGENT_CONTROL_DB_HOST_PORT=15432
 curl -L https://raw.githubusercontent.com/agentcontrol/agent-control/refs/heads/main/docker-compose.yml | docker compose -f - up -d
 ```
 
-To override the bundled PostgreSQL password, set
-`AGENT_CONTROL_POSTGRES_PASSWORD` before starting Compose. This value is used
-for both the Postgres container and the server's database connection. Example:
-
-```bash
-export AGENT_CONTROL_POSTGRES_PASSWORD=agent_control_local
-curl -L https://raw.githubusercontent.com/agentcontrol/agent-control/refs/heads/main/docker-compose.yml | docker compose -f - up -d
-```
-
 Verify it is up:
 
 ```bash

docker-compose.yml

@@ -3,7 +3,6 @@
 # Quick Start:
 #   docker compose up -d
 #   AGENT_CONTROL_SERVER_HOST_PORT=18000 AGENT_CONTROL_DB_HOST_PORT=15432 docker compose up -d
-#   AGENT_CONTROL_POSTGRES_PASSWORD=agent_control_local docker compose up -d
 #
 # Services:
 #   - PostgreSQL database (port 5432)
@@ -27,7 +26,7 @@ services:
     environment:
       POSTGRES_DB: agent_control
       POSTGRES_USER: agent_control
-      POSTGRES_PASSWORD: "${AGENT_CONTROL_POSTGRES_PASSWORD:-agent_control}"
+      POSTGRES_PASSWORD: agent_control
     volumes:
       - pgdata:/var/lib/postgresql/data
     healthcheck:
@@ -46,7 +45,7 @@ services:
     environment:
       # Database connection (uses Docker service name 'postgres')
       # Use postgresql+psycopg:// (supports both sync migrations and async app code)
-      AGENT_CONTROL_DB_URL: "postgresql+psycopg://agent_control:${AGENT_CONTROL_POSTGRES_PASSWORD:-agent_control}@postgres:5432/agent_control"
+      AGENT_CONTROL_DB_URL: postgresql+psycopg://agent_control:agent_control@postgres:5432/agent_control
       # Server configuration
       AGENT_CONTROL_HOST: 0.0.0.0
       AGENT_CONTROL_PORT: 8000