chore: reorganize repo — legacy packages to legacy-packages/, templates to examples/

- Move 15 old workflow-* packages to legacy-packages/ (inactive, preserved for reference)
- Rename templates/ → examples/ for clarity
- Rewrite docs/architecture.md to reflect current uwf architecture
- Active packages remain in packages/: cli-uwf, uwf-agent-hermes, uwf-agent-kit, uwf-moderator, uwf-protocol, workflow-util

小橘 🍊（NEKO Team）

legacy-packages/workflow-template-solve-issue/package.json

@@ -0,0 +1,33 @@
+{
+  "name": "@uncaged/workflow-template-solve-issue",
+  "version": "0.5.0-alpha.4",
+  "files": [
+    "src",
+    "dist",
+    "package.json"
+  ],
+  "type": "module",
+  "exports": {
+    ".": {
+      "bun": "./src/index.ts",
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.js"
+    }
+  },
+  "scripts": {
+    "test": "bun test"
+  },
+  "dependencies": {
+    "@uncaged/workflow-register": "workspace:^",
+    "@uncaged/workflow-runtime": "workspace:^",
+    "zod": "^4.0.0"
+  },
+  "devDependencies": {
+    "@uncaged/workflow-cas": "workspace:^",
+    "@uncaged/workflow-execute": "workspace:^",
+    "@uncaged/workflow-protocol": "workspace:^"
+  },
+  "publishConfig": {
+    "access": "public"
+  }
+}