feat(agent/server): Make port configurable, add documentation for Agent Protocol DB and port config (#6569)

* docs: Add documentation on how to use Agent Protocol in the template

- Added documentation on how to use Agent Protocol and its settings in the `.env.template` file.
- An explanation is provided for the `AP_SERVER_PORT` and `AP_SERVER_DB_URL` settings.
- This change aims to improve the understanding and usage of Agent Protocol in the project.

* docs: Update usage.md with information about configuring the API port

- Update the documentation for the `serve` mode in `usage.md`
- Add information about configuring the port for the API server using the `AP_SERVER_PORT` environment variable.

---------

Co-authored-by: Reinier van der Leer <pwuts@agpt.co>

autogpts/autogpt/.env.template

@@ -220,3 +220,12 @@ OPENAI_API_KEY=your-openai-api-key
 
 ## PLAIN_OUTPUT - Disables animated typing and the spinner in the console output. (Default: False)
 # PLAIN_OUTPUT=False
+
+
+################################################################################
+### Agent Protocol Server Settings
+################################################################################
+## AP_SERVER_PORT - Specifies what port the agent protocol server will listen on. (Default: 8000)
+# AP_SERVER_PORT=8000
+# # AP_SERVER_DB_URL - Specifies what connection url the agent protocol database will connect to (Default: Internal SQLite)
+# AP_SERVER_DB_URL=sqlite:///data/ap_server.db

autogpts/autogpt/autogpt/app/main.py

@@ -365,10 +365,11 @@ async def run_auto_gpt_server(
         database_string=os.getenv("AP_SERVER_DB_URL", "sqlite:///data/ap_server.db"),
         debug_enabled=debug,
     )
+    port: int = int(os.getenv("AP_SERVER_PORT", default=8000))
     server = AgentProtocolServer(
         app_config=config, database=database, llm_provider=llm_provider
     )
-    await server.start()
+    await server.start(port=port)
 
 
 def _configure_openai_provider(config: Config) -> OpenAIProvider:

docs/content/AutoGPT/usage.md

@@ -115,7 +115,7 @@ To exit the program, press ++ctrl+c++
 ### `serve` – Agent Protocol mode with UI
 
 With `serve`, the application exposes an Agent Protocol compliant API and serves a
-frontend, by default on `http://localhost:8000`.
+frontend, by default on `http://localhost:8000`. You can configure the port it is served on with the `AP_SERVER_PORT` environment variable.
 
 <details>
 <summary>