feat(shared): add Claude hooks command executor and utilities

- Add snake-case.ts: objectToSnakeCase, objectToCamelCase utilities
- Add tool-name.ts: transformToolName with PascalCase conversion
- Add pattern-matcher.ts: findMatchingHooks for hook config matching
- Add hook-disabled.ts: isHookDisabled for hook config validation
- Add temporary stub types at src/hooks/claude-code-hooks/types.ts
- Export all new utilities from src/shared/index.ts

Stub types will be replaced with full implementation in Task 1.
Import paths adjusted from opencode-cc-plugin structure to oh-my-opencode.

🤖 GENERATED WITH ASSISTANCE OF [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)

src/shared/hook-disabled.ts

@@ -0,0 +1,22 @@
+import type { ClaudeHookEvent, PluginConfig } from "../hooks/claude-code-hooks/types"
+
+export function isHookDisabled(
+  config: PluginConfig,
+  hookType: ClaudeHookEvent
+): boolean {
+  const { disabledHooks } = config
+
+  if (disabledHooks === undefined) {
+    return false
+  }
+
+  if (disabledHooks === true) {
+    return true
+  }
+
+  if (Array.isArray(disabledHooks)) {
+    return disabledHooks.includes(hookType)
+  }
+
+  return false
+}