v0.5.0: NomadArch - Binary-Free Mode Release

Features:
- Binary-Free Mode: No OpenCode binary required
- NomadArch Native mode with free Zen models
- Native session management
- Provider routing (Zen, Qwen, Z.AI)
- Fixed MCP connection with explicit connectAll()
- Updated installers and launchers for all platforms
- UI binary selector with Native option

Free Models Available:
- GPT-5 Nano (400K context)
- Grok Code Fast 1 (256K context)
- GLM-4.7 (205K context)
- Doubao Seed Code (256K context)
- Big Pickle (200K context)

.github/workflows/manual-npm-publish.yml

@@ -0,0 +1,74 @@
+name: Manual NPM Publish
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: "Version to publish (e.g. 0.2.0-dev)"
+        required: false
+        type: string
+      dist_tag:
+        description: "npm dist-tag"
+        required: false
+        default: dev
+        type: string
+  workflow_call:
+    inputs:
+      version:
+        required: true
+        type: string
+      dist_tag:
+        required: false
+        type: string
+        default: dev
+
+permissions:
+  contents: read
+  id-token: write
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    env:
+      NODE_VERSION: 20
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+          registry-url: https://registry.npmjs.org
+
+      - name: Ensure npm >=11.5.1
+        run: npm install -g npm@latest
+
+      - name: Install dependencies
+        run: npm ci --workspaces
+
+      - name: Ensure rollup native binary
+        run: npm install @rollup/rollup-linux-x64-gnu --no-save
+
+      - name: Build server package (includes UI bundling)
+        run: npm run build --workspace @neuralnomads/codenomad
+
+      - name: Set publish metadata
+        shell: bash
+        run: |
+          VERSION_INPUT="${{ inputs.version }}"
+          if [ -z "$VERSION_INPUT" ]; then
+            VERSION_INPUT=$(node -p "require('./package.json').version")
+          fi
+          echo "VERSION=$VERSION_INPUT" >> "$GITHUB_ENV"
+          echo "DIST_TAG=${{ inputs.dist_tag || 'dev' }}" >> "$GITHUB_ENV"
+
+      - name: Bump package version for publish
+        run: npm version ${VERSION} --workspaces --include-workspace-root --no-git-tag-version --allow-same-version
+
+      - name: Publish server package with provenance
+        env:
+          NPM_CONFIG_PROVENANCE: true
+          NPM_CONFIG_REGISTRY: https://registry.npmjs.org
+        run: |
+          npm publish --workspace @neuralnomads/codenomad --access public --tag ${DIST_TAG} --provenance