Apply LotusGuild design system convergence (aesthetic_diff.md)

- §5: Section headers now ╠═══ TITLE ═══╣ (was ═══ TITLE ═══)
- §8+§18: Replace inline-style showTerminalNotification() with lt.toast.*
  delegate wrapper; load base.js from /base.js
- §12: Fix --text-muted #008822→#00bb33 (WCAG AA contrast)

base.js symlinked from web_template into public/ so lt.* is available.
showTerminalNotification() is kept as a thin wrapper so all existing
call sites continue to work unchanged.

README: Remove completed pending items (toast, text-muted, position)

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

README.md

@@ -4,6 +4,22 @@ A distributed workflow orchestration platform for managing and executing complex
 
 > **Security Notice:** This repository is hosted on Gitea and is version-controlled. **Never commit secrets, credentials, passwords, API keys, or any sensitive information to this repo.** All sensitive configuration belongs exclusively in `.env` files which are listed in `.gitignore` and must never be committed. This includes database passwords, worker API keys, webhook secrets, and internal IP details.
 
+**Design System**: [web_template](https://code.lotusguild.org/LotusGuild/web_template) — shared CSS, JS, and layout patterns for all LotusGuild apps
+
+## Styling & Layout
+
+PULSE uses the **LotusGuild Terminal Design System**. For all styling, component, and layout documentation see:
+
+- [`web_template/README.md`](https://code.lotusguild.org/LotusGuild/web_template/src/branch/main/README.md) — full component reference, CSS variables, JS API
+- [`web_template/base.css`](https://code.lotusguild.org/LotusGuild/web_template/src/branch/main/base.css) — unified CSS (`.lt-*` classes)
+- [`web_template/base.js`](https://code.lotusguild.org/LotusGuild/web_template/src/branch/main/base.js) — `window.lt` utilities (toast, modal, WebSocket helpers, fetch)
+- [`web_template/aesthetic_diff.md`](https://code.lotusguild.org/LotusGuild/web_template/src/branch/main/aesthetic_diff.md) — cross-app divergence analysis and convergence guide
+- [`web_template/node/middleware.js`](https://code.lotusguild.org/LotusGuild/web_template/src/branch/main/node/middleware.js) — Express auth, CSRF, CSP nonce middleware
+
+**Pending convergence items (see aesthetic_diff.md):**
+- Extract inline `<style>` from `public/index.html` into `public/style.css` and extend `base.css`
+- Use `lt.autoRefresh.start(refreshData, 30000)` instead of raw `setInterval`
+
 ## Overview
 
 PULSE is a centralized workflow execution system designed to orchestrate operations across distributed infrastructure. It provides a powerful web-based interface with a vintage CRT terminal aesthetic for defining, managing, and executing workflows that can span multiple servers, require human interaction, and perform complex automation tasks at scale.
@@ -307,12 +323,34 @@ MAX_CONCURRENT_TASKS=5              # Max parallel tasks (default: 5)
 
 PULSE uses MariaDB with the following tables:
 
-- **users**: User accounts from Authelia SSO
-- **workers**: Worker node registry with metadata
-- **workflows**: Workflow definitions (JSON)
-- **executions**: Execution history with logs
+| Table | Purpose |
+|-------|---------|
+| `users` | User accounts synced from Authelia SSO |
+| `workers` | Worker node registry with connection metadata |
+| `workflows` | Workflow definitions stored as JSON |
+| `executions` | Execution history with logs, status, and timestamps |
 
-See [Claude.md](Claude.md) for complete schema details.
+### `executions` Table Key Columns
+
+| Column | Description |
+|--------|-------------|
+| `id` | Auto-increment primary key |
+| `worker_id` | Foreign key to workers |
+| `command` | The command that was executed |
+| `status` | `running`, `completed`, `failed` |
+| `output` | Command output / log (JSON or text) |
+| `created_at` | Execution start timestamp |
+| `completed_at` | Execution end timestamp |
+
+### `workers` Table Key Columns
+
+| Column | Description |
+|--------|-------------|
+| `id` | Auto-increment primary key |
+| `name` | Worker name (from `WORKER_NAME` env) |
+| `last_seen` | Last heartbeat timestamp |
+| `status` | `online`, `offline` |
+| `metadata` | JSON blob of system info |
 
 ## Troubleshooting