feat(backend): support dedicated OpenRouter API key for autopilot

Add AUTOPILOT_OPEN_ROUTER_API_KEY env var that, when set, is used
instead of OPEN_ROUTER_API_KEY for CoPilot/AutoPilot SDK calls.
Falls back to the regular key when not configured.

autogpt_platform/backend/backend/copilot/config.py

@@ -7,6 +7,7 @@ from pydantic import Field, field_validator
 from pydantic_settings import BaseSettings
 
 from backend.util.clients import OPENROUTER_BASE_URL
+from backend.util.settings import Settings
 
 
 class ChatConfig(BaseSettings):
@@ -171,7 +172,12 @@ class ChatConfig(BaseSettings):
         base = (self.base_url or "").rstrip("/")
         if base.endswith("/v1"):
             base = base[:-3]
-        return bool(self.api_key and base and base.startswith("http"))
+        return bool(self.autopilot_api_key and base and base.startswith("http"))
+
+    @property
+    def autopilot_api_key(self) -> str | None:
+        """Return the dedicated AutoPilot OpenRouter API key, falling back to api_key."""
+        return Settings().secrets.autopilot_open_router_api_key or self.api_key
 
     @property
     def e2b_active(self) -> bool:

autogpt_platform/backend/backend/copilot/sdk/service.py

@@ -524,9 +524,10 @@ def _build_sdk_env(
     base = (config.base_url or "").rstrip("/")
     if base.endswith("/v1"):
         base = base[:-3]
+
     env: dict[str, str] = {
         "ANTHROPIC_BASE_URL": base,
-        "ANTHROPIC_AUTH_TOKEN": config.api_key or "",
+        "ANTHROPIC_AUTH_TOKEN": config.autopilot_api_key or "",
         "ANTHROPIC_API_KEY": "",  # force CLI to use AUTH_TOKEN
     }
 
@@ -1776,10 +1777,10 @@ async def stream_chat_completion_sdk(
 
         # Fail fast when no API credentials are available at all.
         sdk_env = _build_sdk_env(session_id=session_id, user_id=user_id)
-        if not config.api_key and not config.use_claude_code_subscription:
+        if not config.autopilot_api_key and not config.use_claude_code_subscription:
             raise RuntimeError(
-                "No API key configured. Set OPEN_ROUTER_API_KEY, "
-                "CHAT_API_KEY, or ANTHROPIC_API_KEY for API access, "
+                "No API key configured. Set AUTOPILOT_OPEN_ROUTER_API_KEY, "
+                "OPEN_ROUTER_API_KEY, CHAT_API_KEY, or ANTHROPIC_API_KEY for API access, "
                 "or CHAT_USE_CLAUDE_CODE_SUBSCRIPTION=true to use "
                 "Claude Code CLI subscription (requires `claude login`)."
             )

autogpt_platform/backend/backend/util/settings.py

@@ -619,6 +619,11 @@ class Secrets(UpdateTrackingModel["Secrets"], BaseSettings):
     anthropic_api_key: str = Field(default="", description="Anthropic API key")
     groq_api_key: str = Field(default="", description="Groq API key")
     open_router_api_key: str = Field(default="", description="Open Router API Key")
+    autopilot_open_router_api_key: str = Field(
+        default="",
+        description="Dedicated Open Router API Key for AutoPilot. "
+        "When set, autopilot uses this key instead of the shared open_router_api_key.",
+    )
     llama_api_key: str = Field(default="", description="Llama API Key")
     v0_api_key: str = Field(default="", description="v0 by Vercel API key")
     webshare_proxy_username: str = Field(