fix: rewrite share.md as a proper command template with YAML frontmatter

plugins/visual-explainer/commands/share.md

@@ -1,58 +1,13 @@
-# Share Visual Explainer Page
+---
+name: share
+description: Share a visual explainer HTML page via Vercel and return a live URL
+---
+Share the HTML file at `$1` using the visual-explainer share script.
 
-Share a visual explainer HTML file instantly via Vercel. Returns a live URL with no authentication required.
+Run: `bash {{skill_dir}}/scripts/share.sh $1`
 
-## Usage
+The script copies the file to a temp directory as `index.html`, deploys it via the vercel-deploy skill, and prints the live URL. No Vercel account or API keys are needed — the deployment is publicly accessible and claimable.
 
-```
-/share <file-path>
-```
+If no file path is provided, list HTML files in `~/.agent/diagrams/` and ask the user to select one.
 
-**Arguments:**
-- `file-path` - Path to the HTML file to share (required)
-
-**Examples:**
-```
-/share ~/.agent/diagrams/my-diagram.html
-/share /tmp/visual-explainer-output.html
-```
-
-## How It Works
-
-1. Copies your HTML file to a temp directory as `index.html`
-2. Deploys via the vercel-deploy skill (no auth needed)
-3. Returns a live URL immediately
-
-## Requirements
-
-- **vercel-deploy skill** - Should be pre-installed. If not: `pi install npm:vercel-deploy`
-
-No Vercel account, Cloudflare account, or API keys needed. The deployment is "claimable" — you can transfer it to your Vercel account later if you want.
-
-## Script Location
-
-```bash
-bash {{skill_dir}}/scripts/share.sh <file>
-```
-
-## Output
-
-```
-Sharing my-diagram.html...
-
-✓ Shared successfully!
-
-Live URL:  https://skill-deploy-abc123.vercel.app
-Claim URL: https://vercel.com/claim-deployment?code=...
-```
-
-The script also outputs JSON for programmatic use:
-```json
-{"previewUrl":"https://...","claimUrl":"https://...","deploymentId":"...","projectId":"..."}
-```
-
-## Notes
-
-- Deployments are **public** — anyone with the URL can view
-- Preview deployments have a configurable retention period (default: 30 days)
-- Each share creates a new deployment with a unique URL
+Report the live URL and claim URL to the user when the deployment succeeds.