Remove hook execution timeouts

- Remove timeout logic from HookRunner
- Remove hookTimeout from Settings interface
- Remove getHookTimeout/setHookTimeout methods
- Update CHANGELOG.md and hooks.md

Timeouts were inconsistently applied and caused issues with
legitimate slow operations (LLM calls, user prompts). Users can
use Ctrl+C to abort hung hooks.

packages/coding-agent/src/core/settings-manager.ts

@@ -48,7 +48,6 @@ export interface Settings {
 	shellPath?: string; // Custom shell path (e.g., for Cygwin users on Windows)
 	collapseChangelog?: boolean; // Show condensed changelog after update (use /changelog for full)
 	hooks?: string[]; // Array of hook file paths
-	hookTimeout?: number; // Timeout for hook execution in ms (default: 30000)
 	customTools?: string[]; // Array of custom tool file paths
 	skills?: SkillsSettings;
 	terminal?: TerminalSettings;
@@ -322,15 +321,6 @@ export class SettingsManager {
 		this.save();
 	}
 
-	getHookTimeout(): number {
-		return this.settings.hookTimeout ?? 30000;
-	}
-
-	setHookTimeout(timeout: number): void {
-		this.globalSettings.hookTimeout = timeout;
-		this.save();
-	}
-
 	getCustomToolPaths(): string[] {
 		return [...(this.settings.customTools ?? [])];
 	}