Architect Copilot & Template Session — 2026-09-22

This document serves as the official resume and handoff point for the repository and related templates. It records what was built, verified with evidence, the state of the tree, and exact instructions for session renewal.

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1. Summary of Milestones Achieved

A) WhatsApp Merchant Agent Copilot & Quick Pay (wa-wdeftksa Pattern)

• Architecture Model: Grounded on wa-wdeftksa (Meta WhatsApp Cloud API v23.0 standards, deterministic "Data Not Code" execution, strict closed-set command classifier, output ReplyGuard).
• Arabic Numeral Normalization: Built and exported normalizeArabicDigits in packages/utils/lib/phone.ts converting Eastern Arabic-Indic numerals (٠-٩) and Persian numerals (۰-۹) to ASCII digits. Resolved regex failure on Arabic text inputs. Verified with 9 tests.
• Customer Checkout Route: Built /pay/[reference] page (PublicPayView.tsx) with mada, Apple Pay, card options, ZATCA Phase 2 simplified tax invoice generation (Tags 1-5 TLV Base64 QR code), print receipt, and WhatsApp share buttons.
• oRPC Procedures:
  • whatsappAgentTurn: Merchant AI Copilot running normalized Arabic NLP, allowlist commands, dynamic host in allowedDomains, and replyGuard output inspection.
  • createQuickLink & listQuickLinks: Protected tenant-isolated payment link generation and listing.
  • getPublicPaymentLink & processPublicPayment: Public procedures for customer checkout retrieval and transaction execution.
  • simulatePaymentSuccess: Issues deterministic ZATCA TLV invoices on payment confirmation.

B) Standalone Architecture Thinking & Canvas Studio Template

• Source System: Cloned cleanly from apps/architect-chat (live at https://mahalli-architect-dev.news-function.workers.dev).
• Decoupled Architecture: Created a 100% standalone, non-monorepo template that runs on standard npm, pnpm, or bun.
• Locations:
  1. /Users/fares-wdeftksa/development/architect-thinking-template (Direct access alongside other development projects).
  2. templates/architect-thinking-template (Version-controlled in this repository).
• Template Features:
  • Hono edge backend on Cloudflare Workers with SSE streaming.
  • Multi-model reasoning (free Workers AI: DeepSeek R1 32B, Llama 3.3 70B, Qwen 2.5 72B; optional Anthropic Claude 3.5 Sonnet and OpenRouter).
  • Infinite Architecture Canvas (Pan & Zoom, interactive Minimap, draggable Glass Cards, connecting SVG Wires, localStorage autosave, JSON export).
  • Ideas & Plans Vault with persistent Cloudflare KV storage, automated financial/technical impact calculation, confidence scoring, action items checklist, and Markdown export.
  • Modular project configuration (src/config.ts) with presets for System Architect, Saudi Commerce, and B2B SaaS.
  • Dynamic branding via /api/config.
  • Automation setup script (setup.sh) and comprehensive bilingual README.md.
  • Fully verified with TypeScript (tsc --noEmit), Oxlint, and Oxfmt.

C) Cloudflare Deployment

• apps/architect-chat deployed and verified live:
  • URL: https://mahalli-architect-dev.news-function.workers.dev
  • Status: HTTP 200 OK, healthy.

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2. Verification Gates & Evidence

All required repository gates passed:

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3. Repository State

• Branch: main
• Latest Commit: eea828cb (feat(templates): add standalone Cloudflare Workers AI architect thinking & canvas studio template)
• Remote: Synchronized with origin/main at https://github.com/alswat1222/proj-all-saudi.git.

D) Meta WhatsApp Cloud API Webhook & Moyasar Quick Pay Reconciliation

• Meta WhatsApp Cloud API Webhook:
  • Verification: GET /api/webhooks/whatsapp verifying hub.mode, hub.verify_token, and echoing hub.challenge.
  • Ingestion: POST /api/webhooks/whatsapp with HMAC-SHA256 signature verification (x-hub-signature-256).
  • Core Message Engine: Extracted processMerchantMessage into packages/api/modules/payments/lib/whatsapp-agent-core.ts, shared between oRPC whatsappAgentTurn and incoming webhook.
  • Multi-tier Store Resolution: Matches phoneNumberId to WhatsAppBotConfig, or merchant sender phone to User, or environment fallback.
  • Outgoing Dispatch: sendWhatsAppTextMessage via Graph API v21.0 with mock fallback for local environments.
  • Tested: 11 tests in modules/payments/lib/whatsapp-webhook.test.ts.
• Moyasar Quick Pay Reconciliation:
  • Extended packages/payments/provider/moyasar/index.ts webhook handler (payment_paid/invoice_paid).
  • Detects metadata.payment_link_id or metadata.payment_reference.
  • Automatically marks payment link PAID and issues ZATCA Phase 2 simplified tax invoice with TLV QR Base64.
  • Idempotent: Skips re-processing if link is already marked PAID.
  • Tested: 15 tests in packages/payments/provider/moyasar/index.test.ts.

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2. Verification & Quality Gates Status

All required repository gates passed:

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3. Git & Remote Sync

• Branch: main
• Remote: git@github.com:alswat1222/proj-all-saudi.git
• Working Tree: Completely clean (working tree clean).

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4. Key Decisions & Architectural Patterns (ADR Reference)

1. Eastern Arabic Digit Normalization: Standard JavaScript regex \d does not match ٠-٩. All text-processing pipelines accepting amounts, phone numbers, or dates must call normalizeArabicDigits before regex evaluation.
2. Multi-Environment URL Resolution: Never hardcode domains. Use getBaseUrl(process.env.NEXT_PUBLIC_SAAS_URL, 3000) from @repo/utils, and pass new URL(baseUrl).hostname to security guards.
3. Model as Classifier Only: The LLM in WhatsApp Copilot is strictly a command classifier. High-stakes actions (issuing ZATCA tax invoices, marking payments) execute deterministically through verified code procedures only.
4. Resilient KV Bindings: Handlers check c.env.ARCHITECT_KV || c.env.KV || c.env.MAHALLI_ARCHITECT_KV and fall back gracefully to browser localStorage if KV is unconfigured.
5. DRY Merchant Message Engine: processMerchantMessage is shared between authenticated web procedures and incoming WhatsApp webhooks to ensure identical behavior and reply-guard enforcement.

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5. Resumption Instructions (How to Continue)

To resume work in the next session:

1. Local Development:

   pnpm dev

   • SaaS App: http://localhost:3000
   • Marketing Site: http://localhost:3001
   • Docs Handbook: http://localhost:3002
2. Using the Standalone Architect Template:

   cd /Users/fares-wdeftksa/development/architect-thinking-template
   pnpm dev # Opens on http://localhost:8788

3. Next Technical Objectives:
   • Add Playwright E2E test suite covering /pay/[reference] payment and ZATCA invoice rendering.
   • Configure Meta Cloud API webhook URL in App Dashboard with verification token.