Fix worker chmod handling for web-owned files

mvlog_worker.py

@@ -51,6 +51,17 @@ def remote_q(path: str) -> str:
     return quote(path)
 
 
+def safe_chmod(path: Path, mode: int) -> None:
+    try:
+        path.chmod(mode)
+    except PermissionError:
+        # The worker may have group write access to www-data-owned files but
+        # still cannot chmod files it does not own. Do not fail rendering for that.
+        pass
+    except FileNotFoundError:
+        pass
+
+
 def list_jobs(host: str | None, remote_root: str) -> list[str]:
     if host is None:
         root = Path(remote_root) / "in-dir"
@@ -185,7 +196,7 @@ def write_state(host: str | None, job_dir: str, state: dict) -> None:
     if host is None:
         path = Path(job_dir) / STATE_NAME
         path.write_text(json.dumps(state, ensure_ascii=False, indent=2) + "\n", encoding="utf-8")
-        path.chmod(0o664)
+        safe_chmod(path, 0o664)
         return
     path = f"{job_dir}/{STATE_NAME}"
     tmp_path = f"{path}.tmp.$$"
@@ -240,7 +251,9 @@ def publish_output(host: str | None, remote_root: str, local_mp4: Path, old_outp
         final = out_dir / out_name
         tmp = out_dir / f".{out_name}.tmp"
         shutil.copy2(local_mp4, tmp)
+        safe_chmod(tmp, 0o664)
         tmp.replace(final)
+        safe_chmod(final, 0o664)
         (Path(remote_root) / "cache" / "videos.json").unlink(missing_ok=True)
         if old_output and old_output != out_name:
             (out_dir / old_output).unlink(missing_ok=True)
@@ -279,6 +292,7 @@ def upload_audio_files(host: str | None, job_dir: str, local_input: Path) -> lis
         if host is None:
             Path(parent).mkdir(parents=True, exist_ok=True)
             shutil.copy2(str(path), remote_path)
+            safe_chmod(Path(remote_path), 0o664)
         else:
             # Ensure parent directory exists on the remote host
             ssh(host, f"mkdir -p {remote_q(parent)}")
@@ -365,6 +379,7 @@ def process_job(host: str | None, remote_root: str, job: str, work_dir: Path, ex
         else:
             processing_state["fingerprint"] = fingerprint_before
             processing_state["output"] = old_output
+        processing_state.pop("message", None)
         write_state(host, job_dir, processing_state)
 
         local_job = work_dir / job
@@ -421,6 +436,7 @@ def process_job(host: str | None, remote_root: str, job: str, work_dir: Path, ex
             })
             if article_id:
                 new_state["article_id"] = article_id
+            new_state.pop("message", None)
             write_state(host, job_dir, new_state)
             print(f"published preview: {job} -> {preview_output}")
             
@@ -447,6 +463,7 @@ def process_job(host: str | None, remote_root: str, job: str, work_dir: Path, ex
         })
         if article_id:
             new_state["article_id"] = article_id
+        new_state.pop("message", None)
         write_state(host, job_dir, new_state)
         print(f"published: {job} -> {output}")