chore: stable spec release 2026-01-26 and SDK v1.0.0 (#362)

* chore: add stable spec release 2026-01-26

- Use git mv to copy specification from draft to specification/2026-01-26/apps.mdx (preserves history)
- Update status from 'Draft' to 'Stable (2026-01-26)'
- Add specification version table to README
- Update Resources section with links to both stable and draft specs

* chore: bump version to 1.0.0

- Update main package version from 0.4.2 to 1.0.0
- Update all example package versions to 1.0.0
- Regenerate package-lock.json

* prettier

* chore: align protocol version with spec release 2026-01-26

- Add 'Protocol Version: 2026-01-26' to spec header
- Update LATEST_PROTOCOL_VERSION from '2025-11-21' to '2026-01-26'
- Update spec examples to use '2026-01-26' protocol version
- Add '2025-11-21' to SUPPORTED_PROTOCOL_VERSIONS for backwards compatibility

* chore: update spec references to stable 2026-01-26

- Update typedoc.config.mjs navigation link
- Update docs/overview.md spec links (10 occurrences)
- Update plugins/mcp-apps/skills/create-mcp-app/SKILL.md spec link
- Update src/spec.types.ts @see links
- Update AGENTS.md spec path
- Regenerate src/generated/schema.ts with updated links

* chore: simplify versioning - first stable release

- Remove backwards compatibility version (2025-11-21) - this is the first stable release
- Remove redundant 'Protocol Version' header - spec version IS the protocol version

* chore: add history reference comment to stable spec

examples/threejs-server/README.md

@@ -34,7 +34,10 @@ To test local modifications, use this configuration (replace `~/code/ext-apps` w
   "mcpServers": {
     "threejs": {
       "command": "bash",
-      "args": ["-c", "cd ~/code/ext-apps/examples/threejs-server && npm run build >&2 && node dist/index.js --stdio"]
+      "args": [
+        "-c",
+        "cd ~/code/ext-apps/examples/threejs-server && npm run build >&2 && node dist/index.js --stdio"
+      ]
     }
   }
 }

examples/threejs-server/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@modelcontextprotocol/server-threejs",
-  "version": "0.4.2",
+  "version": "1.0.0",
   "type": "module",
   "description": "Three.js 3D visualization MCP App Server",
   "repository": {