chore: initialize monorepo with project scaffolding, configs, and CI setup

docs/explorer_web.md

@@ -0,0 +1,36 @@
+# Explorer Web – Task Breakdown
+
+## Status (2025-09-27)
+
+- **Stage 1**: UI scaffolding and mock data remain TODO; no implementation merged yet. Pending work should align with coordinator receipt history once backend endpoints stabilize.
+
+## Stage 1 (MVP)
+
+- **Structure & Assets**
+  - Populate `apps/explorer-web/public/` with `index.html`, `block.html`, `tx.html`, `address.html`, `receipts.html`, `404.html` scaffolds.
+  - Add base stylesheets (`css/base.css`, `css/layout.css`, `css/theme-dark.css`).
+  - Include logo and icon assets under `public/assets/`.
+
+- **JavaScript Modules**
+  - Implement `js/config.js`, `js/api.js`, `js/store.js`, and `js/utils.js` helpers.
+  - Create component modules under `js/components/` (header, footer, searchbox, block-table, tx-table, pager, keyvalue).
+  - Implement page controllers under `js/pages/` for home, block detail, tx detail, address view, receipts view.
+
+- **Mock Data**
+  - Provide optional mock JSON fixtures under `public/js/vendors/` or `public/mock/`.
+  - Enable mock mode toggle via `CONFIG.USE_MOCK`.
+
+- **Interaction & UX**
+  - Implement search box detection for block numbers, hashes, and addresses.
+  - Add pagination/infinite scroll for block and transaction tables.
+  - Ensure dark theme styling with readable typography and table hover states.
+
+- **Documentation**
+  - Update `apps/explorer-web/README.md` with build/run instructions and API assumptions.
+  - Document required CORS configuration for blockchain node.
+
+## Stage 2+
+
+- Integrate WebSocket streams for live head and mempool updates.
+- Add token balances and ABI decoding when supported by blockchain node.
+- Provide export-to-CSV functionality and light/dark theme toggle.