feat: add release pipeline for crates.io and npm publishing

- Add --check, --publish-crates, --publish-npm-sdk, --publish-npm-cli flags to release script
- Create CI workflow with pre-release checks (cargo fmt, clippy, test, tsc)
- Update release workflow to run checks, build binaries, and publish packages
- Add @sandbox-agent/cli npm package with platform-specific binaries (esbuild pattern)
- Configure TypeScript SDK for npm publishing (exports, files, types)
- Add crates.io metadata to Cargo.toml (repository, description)
- Rename @sandbox-agent/web to @sandbox-agent/inspector

sdks/cli/platforms/linux-x64/package.json

@@ -0,0 +1,19 @@
+{
+  "name": "@sandbox-agent/cli-linux-x64",
+  "version": "0.1.0",
+  "description": "sandbox-agent CLI binary for Linux x64",
+  "license": "Apache-2.0",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/rivet-dev/sandbox-agent"
+  },
+  "os": [
+    "linux"
+  ],
+  "cpu": [
+    "x64"
+  ],
+  "files": [
+    "bin"
+  ]
+}