Refactor project name from "Open Claude Design" to "Open Design"

- Updated project name in package.json, package-lock.json, and README files.
- Changed CLI commands and references from "ocd" to "od".
- Adjusted file structure references in documentation and code to reflect new naming conventions.
- Enhanced .gitignore to include new runtime data files.
- Updated metadata in LICENSE file to match new project name.

skills/critique/SKILL.md

@@ -19,7 +19,7 @@ triggers:
   - "review my landing page"
   - "评审"
   - "复盘"
-ocd:
+od:
   mode: prototype
   platform: desktop
   scenario: design
@@ -52,7 +52,7 @@ the *huashu-design* expert-critique flow.
 A single self-contained `<artifact type="text/html">` review report
 including:
 
-1. **Header** — what artifact was reviewed, date, reviewer ("OCD ·
+1. **Header** — what artifact was reviewed, date, reviewer ("OD ·
    Critique skill"), 1-line verdict
 2. **Radar chart** (inline SVG, no library) showing the 5 scores
 3. **Five dimension cards**, each with:

skills/critique/example.html

@@ -389,7 +389,7 @@
           <span>·</span>
           <span>2026.04.27</span>
           <span>·</span>
-          <span>OCD · Critique skill</span>
+          <span>OD · Critique skill</span>
         </div>
         <h1 class="hd-title">magazine-web-ppt<br>example deck</h1>
       </div>
@@ -662,7 +662,7 @@
     </div>
 
     <footer class="ft">
-      <span>OCD · Critique skill · v0.1</span>
+      <span>OD · Critique skill · v0.1</span>
       <span>5 dimensions · Phil / Hier / Det / Func / Innov</span>
       <span class="br">github.com/alchaincyf/huashu-design</span>
     </footer>