Add Google OAuth login and native Gemini Code Assist support

README.md

@@ -8,19 +8,41 @@ debug with a built-in UI.
 
 ## Quickstart
 
-Requirements: Node.js 18+ and `OPENROUTER_API_KEY` (set `OPENROUTER_BASE_URL` if
-you proxy OpenRouter-style APIs).
+Requirements: Node.js 18+ and either
+
+- `OPENROUTER_API_KEY` (set `OPENROUTER_BASE_URL` if you proxy OpenRouter-style
+  APIs), or
+- a Google AI account with
+  [Gemini Code Assist access](https://developers.google.com/gemini-code-assist/docs/overview)
+  (Google AI Pro/Ultra includes this).
 
 Run the CLI directly with npx (no install):
 
 ```
+# Example using OpenRouter
 export OPENROUTER_API_KEY=...
 npx @bolt-foundry/gambit init
+
+# Example using Google OAuth
+# (Uses the built-in public client automatically; set your own if needed.)
+npx @bolt-foundry/gambit auth google
+npx @bolt-foundry/gambit init
 ```
 
 Downloads example files (hello decks plus the `examples/` gallery) and sets
 environment variables.
 
+### Local install (dev)
+
+When running the local CLI from this repo, use the install script so the import
+map resolves workspace paths:
+
+```
+./scripts/install_local.sh
+```
+
+This installs a `gambit` binary into `~/.deno/bin`.
+
 Run an example in the terminal (`repl`):
 
 ```
@@ -74,6 +96,23 @@ Run with npx (no install):
 npx @bolt-foundry/gambit <command>
 ```
 
+### Google OAuth login (Gemini Code Assist)
+
+If you want to use your Google AI Pro/Gemini Code Assist subscription instead of
+an API key:
+
+```
+export GEMINI_PROJECT_ID="your-project-id"   # where your Code Assist access lives
+
+npx @bolt-foundry/gambit auth google
+```
+
+We ship a public OAuth client baked into the CLI; set your own values above if
+you need a different Google Cloud project. The login flow opens a browser,
+stores tokens in `~/.config/gambit/auth.json`, and reuses them on future runs.
+
+Then run decks with `model = "google/<model>"`.
+
 Run a deck once:
 
 ```

deno.jsonc

@@ -55,12 +55,15 @@
   },
   "compilerOptions": {
     "jsx": "react-jsx",
-    "jsxImportSource": "react"
+    "jsxImportSource": "react",
+    "lib": ["dom", "dom.iterable", "es2022", "deno.ns"]
   },
   "imports": {
     "@deno/dnt": "jsr:@deno/dnt@^0.42.3", // dev
     "@std/front-matter": "jsr:@std/front-matter@^1.0.9",
     "@std/fs": "jsr:@std/fs@^1.0.20",
+    "@std/http": "jsr:@std/http@^1.0.8",
+    "@std/http/server": "jsr:@std/http@^1.0.8/server",
     "@std/jsonc": "jsr:@std/jsonc@^1.0.2", // dev
     "@std/path": "jsr:@std/path@^1.0.6",
     "@std/cli": "jsr:@std/cli@^1.0.7",
@@ -74,6 +77,8 @@
     "zod": "npm:zod@^3.23.8",
     "zod-to-json-schema": "npm:zod-to-json-schema@^3.23.0",
     "@openai/openai": "npm:openai@^4.78.1",
+    "@google/generative-ai": "npm:@google/generative-ai@^0.24.1",
+    "puppeteer-core": "npm:puppeteer-core@^24.35.0",
     "react": "npm:react@^19.2.0",
     "react-dom": "npm:react-dom@^19.2.0"
   },