fix: rename keygraph/shannon to farhoodlabs/trebuchet in all workflows and issue templates

- release.yml, release-beta.yml, rollback.yml, rollback-beta.yml: all Docker image names, npm package refs, pnpm filter commands updated
- Issue templates: CLI examples and workspace paths updated to trebuchet

Co-Authored-By: Paperclip <noreply@paperclip.ing>

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -26,8 +26,8 @@ body:
       label: Which CLI mode does this apply to?
       options:
         - Both
-        - "npx (@keygraph/shannon)"
-        - "Local (./shannon)"
+        - "npx (@trebuchet/cli)"
+        - "Local (./trebuchet)"
 
   - type: textarea
     id: alternatives-considered