docs: sync vault with codebase state (2026-06-12)

- Update backend, frontend, scanner, deployment, amanat-assist service docs
- Update System Overview, Scanner Architecture, Telegram Mini App flow
- Update 10 - Services/README.md
- Add Tenant data model, Tenant API reference, Tenant Storefront Flow
- Add Multi-Shop Branch Project Scan (2026-06-10)
- Add tenant.md service doc
- Append activity log entry
- Reflects archived/search/stats route fix and new E2E test suite

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

09 - Audits/Activity Log.md

@@ -2030,4 +2030,12 @@ Added `10 - Services/README.md` index. All docs now reflect current codebase sta
 - `fix(tables/audit): remove hardcoded rgba(194,65,12,0.04) hover colors` — replaced with MUI built-in hover across admin tables, points leaderboard, and blog; violates AGENTS.md rule (no inline hex/rgba colors).
 - `fix(payment-list): remove fontFamily:var(--amn-sans) from header cells` — hardcoded fontFamily violation removed; inherits theme font correctly.
 
+### 2026-06-08 — nick-doc sync — added sub-project service docs and updated core docs
+
+Added 4 new service docs to `10 - Services/`: backend, frontend, scanner, deployment.
+Updated amanat-assist.md to latest version. Updated Telegram Mini App flow doc and Scanner Architecture doc.
+Added `10 - Services/README.md` index. All docs now reflect current codebase state as of 2026-06-08.
+
+---
+
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