fix: fix bugs in core modules

- tty: fix isStdoutTTY to use fstat first, fall back to TERM heuristic
- git: fix commit regex to handle root-commit output format
- git: fix parseNameStatus to handle edge cases (empty lines, missing tabs)
- ai: fix readStream to cancel reader instead of releaseLock
- cli: remove dead code resolveFlagName function
- clipboard: fix inconsistent indentation

Co-Authored-By: Claude <noreply@anthropic.com>

src/clipboard.ts

@@ -1,26 +1,28 @@
 export async function copyToClipboard(text: string): Promise<boolean> {
-    const commands: string[][] = [];
+	const commands: string[][] = [];
 
-    if (process.platform === "darwin") {
-        commands.push(["pbcopy"]);
-    } else if (process.platform === "linux") {
-        commands.push(["xclip", "-selection", "clipboard"]);
-        commands.push(["xsel", "--clipboard", "--input"]);
-    }
+	if (process.platform === "darwin") {
+		commands.push(["pbcopy"]);
+	} else if (process.platform === "linux") {
+		commands.push(["xclip", "-selection", "clipboard"]);
+		commands.push(["xsel", "--clipboard", "--input"]);
+	}
 
-    for (const cmd of commands) {
-        try {
-            const proc = Bun.spawn(cmd, {
-                stdin: "pipe",
-                stdout: "ignore",
-                stderr: "ignore",
-            });
-            proc.stdin.write(text);
-            proc.stdin.end();
-            const exitCode = await proc.exited;
-            if (exitCode === 0) return true;
-        } catch {}
-    }
+	for (const cmd of commands) {
+		try {
+			const proc = Bun.spawn(cmd, {
+				stdin: "pipe",
+				stdout: "ignore",
+				stderr: "ignore",
+			});
+			proc.stdin.write(text);
+			proc.stdin.end();
+			const exitCode = await proc.exited;
+			if (exitCode === 0) return true;
+		} catch {
+			// Try next command
+		}
+	}
 
-    return false;
+	return false;
 }