Add resolution parameter to video generation requests and implement video status polling endpoint

Co-authored-by: Copilot <copilot@github.com>

backend/app/models/ai.py

@@ -74,6 +74,7 @@ class VideoRequest(BaseModel):
     prompt: str
     duration_seconds: int | None = None
     aspect_ratio: str = "16:9"
+    resolution: str | None = None  # e.g. "480p", "720p", "1080p"
 
 
 class VideoFromImageRequest(BaseModel):
@@ -82,6 +83,7 @@ class VideoFromImageRequest(BaseModel):
     prompt: str
     duration_seconds: int | None = None
     aspect_ratio: str = "16:9"
+    resolution: str | None = None  # e.g. "480p", "720p", "1080p"
 
 
 class VideoResponse(BaseModel):

backend/app/routers/generate.py

@@ -100,6 +100,7 @@ async def generate_video(
             prompt=body.prompt,
             duration_seconds=body.duration_seconds,
             aspect_ratio=body.aspect_ratio,
+            resolution=body.resolution,
         )
     except Exception as exc:
         raise HTTPException(
@@ -131,6 +132,7 @@ async def generate_video_from_image(
             prompt=body.prompt,
             duration_seconds=body.duration_seconds,
             aspect_ratio=body.aspect_ratio,
+            resolution=body.resolution,
         )
     except Exception as exc:
         raise HTTPException(

backend/app/services/openrouter.py

@@ -81,6 +81,7 @@ async def generate_video(
     prompt: str,
     duration_seconds: int | None = None,
     aspect_ratio: str = "16:9",
+    resolution: str | None = None,
 ) -> dict[str, Any]:
     """Request text-to-video generation via OpenRouter."""
     base_url = os.getenv("OPENROUTER_BASE_URL", OPENROUTER_BASE_URL)
@@ -91,6 +92,8 @@ async def generate_video(
     }
     if duration_seconds is not None:
         payload["duration_seconds"] = duration_seconds
+    if resolution is not None:
+        payload["resolution"] = resolution
     async with httpx.AsyncClient(timeout=120) as client:
         resp = client.build_request(
             "POST", f"{base_url}/videos", headers=_headers(), json=payload
@@ -106,6 +109,7 @@ async def generate_video_from_image(
     prompt: str,
     duration_seconds: int | None = None,
     aspect_ratio: str = "16:9",
+    resolution: str | None = None,
 ) -> dict[str, Any]:
     """Request image-to-video generation via OpenRouter."""
     base_url = os.getenv("OPENROUTER_BASE_URL", OPENROUTER_BASE_URL)
@@ -117,6 +121,8 @@ async def generate_video_from_image(
     }
     if duration_seconds is not None:
         payload["duration_seconds"] = duration_seconds
+    if resolution is not None:
+        payload["resolution"] = resolution
     async with httpx.AsyncClient(timeout=120) as client:
         resp = client.build_request(
             "POST", f"{base_url}/videos", headers=_headers(), json=payload