feat: SuppressionManager を導入し通知の重複・誤検知を防止

[is0692vs]

• 新規追加: src/suppressionManager.ts（通知抑制ロジック、保存中フラグ、行数トラッキング、閾値判定を実装）
• extension.ts に抑制マネージャを初期化して統合
  • onCreate/onSave/onLargeDelete/onFileSizeExceeded の処理で shouldSuppress/recordNotification 等を利用
  • ファイル保存時のマークとクリーンアップを追加
  • ファイル行数トラッキングの初期化と更新を追加
• triggerManager.ts を抑制機構に対応させ、トリガー毎のファイル単位スロットリングを導入
• README.md に通知優先度・抑制ルール、デフォルト閾値、技術的詳細を追記

これにより、複数トリガー同時発火やフォーマッタによる保存時の誤通知を抑制します。

[Copilot]

Pull Request Overview

This PR introduces an intelligent notification suppression system to prevent duplicate or overlapping notifications when multiple triggers fire simultaneously. The key improvement is tracking notifications per-file and per-trigger-type, rather than globally, with configurable suppression rules.

Key changes:

• Added SuppressionManager class to handle notification suppression logic with configurable rules
• Updated TriggerManager to use per-file, per-trigger throttling instead of global throttling
• Integrated suppression checks throughout trigger handlers (onCreate, onLargeDelete, onFileSizeExceeded)

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
src/suppressionManager.ts	New file implementing notification suppression logic with per-file tracking, suppression rules, and threshold crossing detection
src/triggerManager.ts	Refactored to use per-file per-trigger throttling and integrate with SuppressionManager
src/extension.ts	Integrated SuppressionManager throughout trigger handlers, added line count tracking, and replaced global save flag with per-file tracking
README.md	Added comprehensive documentation explaining suppression rules, trigger types, and timing behavior

Comments suppressed due to low confidence (1)

src/extension.ts:168

• The TriggerManager is being recreated without passing the suppressionManager parameter. This will cause the trigger manager to lose suppression functionality when configuration changes. Change to: triggerManager = new TriggerManager(context, handleTrigger, suppressionManager);

				triggerManager = new TriggerManager(context, handleTrigger);

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Unused import vscode.

Suggested change

import * as vscode from 'vscode';