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)

packages/ui/src/lib/commands.ts

@@ -0,0 +1,68 @@
+export interface KeyboardShortcut {
+  key: string
+  meta?: boolean
+  ctrl?: boolean
+  shift?: boolean
+  alt?: boolean
+}
+
+export interface Command {
+  id: string
+  label: string | (() => string)
+  description: string
+  keywords?: string[]
+  shortcut?: KeyboardShortcut
+  action: () => void | Promise<void>
+  category?: string
+}
+
+export function createCommandRegistry() {
+  const commands = new Map<string, Command>()
+
+  function register(command: Command) {
+    commands.set(command.id, command)
+  }
+
+  function unregister(id: string) {
+    commands.delete(id)
+  }
+
+  function get(id: string) {
+    return commands.get(id)
+  }
+
+  function getAll() {
+    return Array.from(commands.values())
+  }
+
+  function execute(id: string) {
+    const command = commands.get(id)
+    if (command) {
+      return command.action()
+    }
+  }
+
+  function search(query: string) {
+    if (!query) return getAll()
+
+    const lowerQuery = query.toLowerCase()
+    return getAll().filter((cmd) => {
+      const label = typeof cmd.label === "function" ? cmd.label() : cmd.label
+      const labelMatch = label.toLowerCase().includes(lowerQuery)
+      const descMatch = cmd.description.toLowerCase().includes(lowerQuery)
+      const keywordMatch = cmd.keywords?.some((k) => k.toLowerCase().includes(lowerQuery))
+      return labelMatch || descMatch || keywordMatch
+    })
+  }
+
+  return {
+    register,
+    unregister,
+    get,
+    getAll,
+    execute,
+    search,
+  }
+}
+
+export type CommandRegistry = ReturnType<typeof createCommandRegistry>