feat(ce-ideate): subject gate, surprise-me, and warrant contract (#671)

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

plugins/compound-engineering/skills/ce-demo-reel/references/upload-and-approval.md

@@ -24,7 +24,7 @@ Present the preview URL to the user and ask how to handle the evidence. Use the
 
 **Options:**
 1. **Upload to catbox (public URL)** -- promote to permanent hosting for PR embedding
-2. **Save locally** -- save to a stable OS-temp path ($TMPDIR/compound-engineering/ce-demo-reel/)
+2. **Save locally** -- save to a stable OS-temp path (/tmp/compound-engineering/ce-demo-reel/)
 3. **Recapture** -- provide instructions on what to change
 4. **Proceed without evidence** -- set evidence to null and proceed
 

plugins/compound-engineering/skills/ce-demo-reel/scripts/capture-demo.py

@@ -739,7 +739,7 @@ Commands:
     p_save = sub.add_parser("save-local", help="Save artifact locally instead of uploading")
     p_save.add_argument("--file", required=True, help="Artifact file to save")
     p_save.add_argument("--branch", default="", help="Branch name for filename")
-    default_dir = str(Path(os.environ.get("TMPDIR", "/tmp")) / "compound-engineering" / "ce-demo-reel")
+    default_dir = "/tmp/compound-engineering/ce-demo-reel"
     p_save.add_argument("--output-dir", default=default_dir, help="Target directory")
 
     args = parser.parse_args()