rebrand: agent-browser-stealth → chrome-use, de-fork, reset to v1.0.0

Standalone product rename across the whole repo (issue: project identity):

- Binary/package/repo/skill/docs: agent-browser[-stealth] → chrome-use
  (single binary name `chrome-use`; old aliases agent-browser/abs dropped).
- Version: 0.27.0-fork.51 → 1.0.0 (drop the upstream-fork counter).
- Native-messaging host: com.agent_browser.connect → com.leeguoo.chrome_use
  (CLI + ab-connect extension in lockstep — this is a breaking handshake change,
  extension bumped 0.4.2 → 0.5.0, needs a Web Store republish).
- Config dir: ~/.agent-browser → ~/.chrome-use.
- README/zh: reframed from "stealth fork of agent-browser" to a standalone
  product with a small `originally based on vercel-labs/agent-browser` credit.
- Kept AGENT_BROWSER_* env vars working (63 vars across the codebase; renaming
  them would break every existing script/skill for no user-facing gain).

Build green, 802 unit tests pass, fmt + clippy clean. Upstream attribution to
vercel-labs/agent-browser preserved.

bin/agent-browser.d

@@ -1 +0,0 @@
-/Users/leo/github.com/agent-browser/cli/target/release/agent-browser: /Users/leo/github.com/agent-browser/cli/build.rs /Users/leo/github.com/agent-browser/cli/cdp-protocol/browser_protocol.json /Users/leo/github.com/agent-browser/cli/cdp-protocol/js_protocol.json /Users/leo/github.com/agent-browser/cli/src/color.rs /Users/leo/github.com/agent-browser/cli/src/commands.rs /Users/leo/github.com/agent-browser/cli/src/connection.rs /Users/leo/github.com/agent-browser/cli/src/flags.rs /Users/leo/github.com/agent-browser/cli/src/install.rs /Users/leo/github.com/agent-browser/cli/src/main.rs /Users/leo/github.com/agent-browser/cli/src/output.rs /Users/leo/github.com/agent-browser/cli/src/validation.rs

bin/chrome-use.js

@@ -1,7 +1,7 @@
 #!/usr/bin/env node
 
 /**
- * Cross-platform CLI wrapper for agent-browser
+ * Cross-platform CLI wrapper for chrome-use
  * 
  * This wrapper enables npx support on Windows where shell scripts don't work.
  * For global installs, postinstall.js patches the shims to invoke the native
@@ -62,7 +62,7 @@ function getBinaryName() {
   }
 
   const ext = os === 'win32' ? '.exe' : '';
-  return `agent-browser-${osKey}-${archKey}${ext}`;
+  return `chrome-use-${osKey}-${archKey}${ext}`;
 }
 
 function main() {