revert: ASTRA 이메일 기능 제거 — Datacollect wiki화로 피벗

Revert "feat(astra): 이메일 Settings 패널 섹션" (eb4bef0)
Revert "feat(astra): Project Astra 이메일 자산화 Phase 1+2" (7e96e56)

방향 전환: 이메일은 ASTRA에 전용 소스로 넣는 대신 Datacollect가 수집·wiki화해
brain(제2뇌)에 저장하고, ASTRA는 기존 brain 검색으로 그대로 활용한다.
Gmail 인증은 Datacollect 소유. /email-status(라이브 현황)는 폐기.
gmailApi 파싱 로직은 Datacollect 이전 시 재사용 예정.

타입체크·빌드 통과.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/features/settings/settingsPanelProvider.ts

@@ -6,9 +6,6 @@ import type { TelegramBot } from '../../integrations/telegram/telegramBot';
 import { logError, logInfo } from '../../utils';
 import { discoverModels } from '../../lib/discoverModels';
 import { pickConfigTarget } from '../../lib/paths';
-import { getConfig } from '../../config';
-import { loadEmailRecords } from '../email/emailStore';
-import { syncEmails } from '../email/emailSync';
 
 /**
  * Astra Settings webview.
@@ -104,20 +101,6 @@ interface SettingsState {
         maxPages: number;
         synthesisTemperature: number;
     };
-    email: {
-        autoSync: boolean;
-        autoSyncIntervalMinutes: number;
-        syncDays: number;
-        syncMaxMessages: number;
-        /** 로컬 인덱스에 저장된 메일 수. */
-        indexedCount: number;
-        /** 가장 최근 메일 날짜(YYYY-MM-DD) — 없으면 ''. */
-        newestDate: string;
-        /** 마지막 '지금 동기화' 결과 메시지. */
-        lastSyncMessage: string;
-        /** 동기화 진행 중. */
-        syncing: boolean;
-    };
     google: {
         clientId: string;
         /** secret 자체는 client 에 echo 안 함 — *설정 여부* 만. true 면 input placeholder 가 "저장됨" 으로 바뀜. */
@@ -165,10 +148,6 @@ export class SettingsPanelProvider implements vscode.WebviewViewProvider {
 
     constructor(private readonly _deps: SettingsPanelDeps) {}
 
-    // Project Astra — 이메일 '지금 동기화' 상태(패널 표시용).
-    private _emailSyncing = false;
-    private _emailLastSyncMsg = '';
-
     public resolveWebviewView(view: vscode.WebviewView): void {
         this._view = view;
         this._setupWebview(view.webview);
@@ -279,12 +258,6 @@ export class SettingsPanelProvider implements vscode.WebviewViewProvider {
                 case 'datacollect.update':
                     await this._handleDatacollectUpdate(msg);
                     return;
-                case 'email.update':
-                    await this._handleEmailUpdate(msg);
-                    return;
-                case 'email.syncNow':
-                    await this._handleEmailSyncNow();
-                    return;
                 case 'google.update':
                     await this._handleGoogleUpdate(msg);
                     return;
@@ -665,70 +638,6 @@ export class SettingsPanelProvider implements vscode.WebviewViewProvider {
         }
     }
 
-    // ────────────── Email (Project Astra) ──────────────
-
-    private async _handleEmailUpdate(msg: any): Promise<void> {
-        if (typeof msg.autoSync === 'boolean') {
-            await this._safeConfigUpdate('email.autoSync', msg.autoSync);
-        }
-        if (typeof msg.autoSyncIntervalMinutes === 'number' && Number.isFinite(msg.autoSyncIntervalMinutes)) {
-            await this._safeConfigUpdate('email.autoSyncIntervalMinutes', Math.max(5, Math.min(1440, Math.floor(msg.autoSyncIntervalMinutes))));
-        }
-        if (typeof msg.syncDays === 'number' && Number.isFinite(msg.syncDays)) {
-            await this._safeConfigUpdate('email.syncDays', Math.max(1, Math.min(365, Math.floor(msg.syncDays))));
-        }
-        if (typeof msg.syncMaxMessages === 'number' && Number.isFinite(msg.syncMaxMessages)) {
-            await this._safeConfigUpdate('email.syncMaxMessages', Math.max(1, Math.min(2000, Math.floor(msg.syncMaxMessages))));
-        }
-    }
-
-    /** 패널의 '지금 동기화' 버튼 — 슬래시 명령과 동일한 syncEmails 코어 호출. */
-    private async _handleEmailSyncNow(): Promise<void> {
-        if (this._emailSyncing) return;
-        const c = vscode.workspace.getConfiguration('g1nation');
-        const days = c.get<number>('email.syncDays', 7) ?? 7;
-        const maxResults = Math.max(1, Math.min(2000, c.get<number>('email.syncMaxMessages', 200) ?? 200));
-        this._emailSyncing = true;
-        this._emailLastSyncMsg = '동기화 중…';
-        await this._refreshState();
-        try {
-            const r = await syncEmails(this._deps.context, { days, maxResults });
-            this._emailLastSyncMsg = r.ok
-                ? `완료 — 신규 ${r.added} / 총 ${r.total}${r.embedded ? ` · 임베딩 ${r.embedded}` : ''}${r.failed ? ` · 실패 ${r.failed}` : ''}`
-                : `실패 — ${r.error}`;
-        } catch (e: any) {
-            this._emailLastSyncMsg = `오류 — ${e?.message || String(e)}`;
-        } finally {
-            this._emailSyncing = false;
-            await this._refreshState();
-        }
-    }
-
-    private _buildEmailState(): SettingsState['email'] {
-        const c = vscode.workspace.getConfiguration('g1nation');
-        let indexedCount = 0;
-        let newestDate = '';
-        try {
-            const brainPath = (getConfig().localBrainPath || '').trim();
-            if (brainPath) {
-                const records = loadEmailRecords(brainPath);
-                indexedCount = records.length;
-                const newest = records.reduce((m, r) => (r.date > m ? r.date : m), 0);
-                if (newest > 0) newestDate = new Date(newest).toISOString().slice(0, 10);
-            }
-        } catch { /* status 표시 실패는 무해 */ }
-        return {
-            autoSync: c.get<boolean>('email.autoSync', false),
-            autoSyncIntervalMinutes: c.get<number>('email.autoSyncIntervalMinutes', 30) ?? 30,
-            syncDays: c.get<number>('email.syncDays', 7) ?? 7,
-            syncMaxMessages: c.get<number>('email.syncMaxMessages', 200) ?? 200,
-            indexedCount,
-            newestDate,
-            lastSyncMessage: this._emailLastSyncMsg,
-            syncing: this._emailSyncing,
-        };
-    }
-
     private async _refreshState(): Promise<void> {
         if (!this._view && !this._panel) return;
         const cfg = vscode.workspace.getConfiguration('g1nation');
@@ -791,7 +700,6 @@ export class SettingsPanelProvider implements vscode.WebviewViewProvider {
                 maxPages: cfg.get<number>('datacollectMaxPages', 8) ?? 8,
                 synthesisTemperature: cfg.get<number>('datacollectSynthesisTemperature', 0.1) ?? 0.1,
             },
-            email: this._buildEmailState(),
             google: this._buildGoogleState(),
             providers: await this._buildProvidersState(),
             devilAgent: { enabled: cfg.get<boolean>('devilAgent.enabled', false) },