Add --raw flag to view command and improve metadata display

- Add --raw/-r flag to fetch from /cache/{cid}/raw endpoint
- Automatically use /raw when outputting to file or stdout
- Show friendly_name, title, filename in metadata view
- Use JSON API for metadata instead of streaming response

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

artdag.py

@@ -748,12 +748,18 @@ def cache(limit, offset, media_type):
 @cli.command()
 @click.argument("cid")
 @click.option("--output", "-o", type=click.Path(), help="Save to file (use - for stdout)")
-def view(cid, output):
+@click.option("--raw", "-r", is_flag=True, help="Get raw content (use with -o to download)")
+def view(cid, output, raw):
     """View or download cached content.
 
     Use -o - to pipe to stdout, e.g.: artdag view <cid> -o - | mpv -
+    Use --raw to get the raw file content instead of metadata.
     """
-    url = f"{get_server()}/cache/{cid}"
+    # Use /raw endpoint if --raw flag or if outputting to file/stdout
+    if raw or output:
+        url = f"{get_server()}/cache/{cid}/raw"
+    else:
+        url = f"{get_server()}/cache/{cid}"
 
     try:
         if output == "-":
@@ -771,16 +777,21 @@ def view(cid, output):
                     f.write(chunk)
             click.echo(f"Saved to: {output}", err=True)
         else:
-            # Get info via GET with stream to check size
-            resp = requests.get(url, stream=True)
+            # Get info - use JSON endpoint for metadata
+            headers = {"Accept": "application/json"}
+            resp = requests.get(f"{get_server()}/cache/{cid}", headers=headers)
             resp.raise_for_status()
-            size = resp.headers.get("content-length", "unknown")
-            content_type = resp.headers.get("content-type", "unknown")
+            info = resp.json()
             click.echo(f"CID: {cid}")
-            click.echo(f"Size: {size} bytes")
-            click.echo(f"Type: {content_type}")
-            click.echo(f"URL: {url}")
-            resp.close()
+            click.echo(f"Size: {info.get('size', 'unknown')} bytes")
+            click.echo(f"Type: {info.get('mime_type') or info.get('media_type', 'unknown')}")
+            if info.get('friendly_name'):
+                click.echo(f"Friendly Name: {info['friendly_name']}")
+            if info.get('title'):
+                click.echo(f"Title: {info['title']}")
+            if info.get('filename'):
+                click.echo(f"Filename: {info['filename']}")
+            click.echo(f"Raw URL: {get_server()}/cache/{cid}/raw")
     except requests.HTTPError as e:
         if e.response.status_code == 404:
             click.echo(f"Not found: {cid}", err=True)