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.

cli/src/connection.rs

@@ -89,7 +89,7 @@ impl Connection {
 }
 
 /// Get the base directory for socket/pid files.
-/// Priority: AGENT_BROWSER_SOCKET_DIR > XDG_RUNTIME_DIR > ~/.agent-browser > tmpdir
+/// Priority: AGENT_BROWSER_SOCKET_DIR > XDG_RUNTIME_DIR > ~/.chrome-use > tmpdir
 pub fn get_socket_dir() -> PathBuf {
     // 1. Explicit override (ignore empty string)
     if let Ok(dir) = env::var("AGENT_BROWSER_SOCKET_DIR") {
@@ -101,17 +101,17 @@ pub fn get_socket_dir() -> PathBuf {
     // 2. XDG_RUNTIME_DIR (Linux standard, ignore empty string)
     if let Ok(runtime_dir) = env::var("XDG_RUNTIME_DIR") {
         if !runtime_dir.is_empty() {
-            return PathBuf::from(runtime_dir).join("agent-browser");
+            return PathBuf::from(runtime_dir).join("chrome-use");
         }
     }
 
     // 3. Home directory fallback (like Docker Desktop's ~/.docker/run/)
     if let Some(home) = dirs::home_dir() {
-        return home.join(".agent-browser");
+        return home.join(".chrome-use");
     }
 
     // 4. Last resort: temp dir
-    env::temp_dir().join("agent-browser")
+    env::temp_dir().join("chrome-use")
 }
 
 #[cfg(unix)]
@@ -949,9 +949,7 @@ mod tests {
         _guard.set("AGENT_BROWSER_SOCKET_DIR", "");
         _guard.remove("XDG_RUNTIME_DIR");
 
-        assert!(get_socket_dir()
-            .to_string_lossy()
-            .ends_with(".agent-browser"));
+        assert!(get_socket_dir().to_string_lossy().ends_with(".chrome-use"));
     }
 
     #[test]
@@ -961,10 +959,7 @@ mod tests {
         _guard.remove("AGENT_BROWSER_SOCKET_DIR");
         _guard.set("XDG_RUNTIME_DIR", "/run/user/1000");
 
-        assert_eq!(
-            get_socket_dir(),
-            PathBuf::from("/run/user/1000/agent-browser")
-        );
+        assert_eq!(get_socket_dir(), PathBuf::from("/run/user/1000/chrome-use"));
     }
 
     #[test]
@@ -974,9 +969,7 @@ mod tests {
         _guard.set("AGENT_BROWSER_SOCKET_DIR", "");
         _guard.set("XDG_RUNTIME_DIR", "");
 
-        assert!(get_socket_dir()
-            .to_string_lossy()
-            .ends_with(".agent-browser"));
+        assert!(get_socket_dir().to_string_lossy().ends_with(".chrome-use"));
     }
 
     #[test]
@@ -987,7 +980,7 @@ mod tests {
         _guard.remove("XDG_RUNTIME_DIR");
 
         let result = get_socket_dir();
-        assert!(result.to_string_lossy().ends_with(".agent-browser"));
+        assert!(result.to_string_lossy().ends_with(".chrome-use"));
         assert!(
             result.to_string_lossy().contains("home") || result.to_string_lossy().contains("Users")
         );