docs: Ledger Live integration, contract deploy learnings, NEXT_STEPS updates

- ADD_CHAIN138_TO_LEDGER_LIVE: Ledger form done; public code review repo bis-innovations/LedgerLive; init/push commands
- CONTRACT_DEPLOYMENT_RUNBOOK: Chain 138 gas price 1 gwei, 36-addr check, TransactionMirror workaround
- CONTRACT_*: AddressMapper, MirrorManager deployed 2026-02-12; 36-address on-chain check
- NEXT_STEPS_FOR_YOU: Ledger done; steps completable now (no LAN); run-completable-tasks-from-anywhere
- MASTER_INDEX, OPERATOR_OPTIONAL, SMART_CONTRACTS_INVENTORY_SIMPLE: updates
- LEDGER_BLOCKCHAIN_INTEGRATION_COMPLETE: bis-innovations/LedgerLive reference

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/unifi/README.md

@@ -0,0 +1,89 @@
+# UniFi Utility Scripts
+
+Utility scripts for common UniFi Controller operations.
+
+## Available Scripts
+
+### `list-sites.sh`
+List all sites in the UniFi Controller.
+
+**Usage:**
+```bash
+./scripts/unifi/list-sites.sh
+```
+
+### `check-health.sh`
+Check UniFi controller health and connectivity.
+
+**Usage:**
+```bash
+./scripts/unifi/check-health.sh
+```
+
+This script:
+- Verifies configuration in `~/.env`
+- Tests controller connectivity
+- Tests API connection
+- Displays site information
+
+### `list-devices.sh`
+Placeholder script for listing devices (currently not available in Official API).
+
+**Usage:**
+```bash
+./scripts/unifi/list-devices.sh
+```
+
+### `test-integration.sh`
+Test suite to verify UniFi integration components are properly set up.
+
+**Usage:**
+```bash
+./scripts/unifi/test-integration.sh
+```
+
+This script verifies:
+- Package builds
+- Configuration
+- Script executability
+- Documentation
+- API connection (if configured)
+
+### `check-networks.sh`
+Check UniFi networks/VLANs configuration (requires Private API mode).
+
+**Usage:**
+```bash
+./scripts/unifi/check-networks.sh
+```
+
+**Note:** Requires Private API mode and a non-2FA account. If your account has 2FA/SSO enabled, this script will not work. Use the web interface instead.
+
+**Requirements:**
+- `UNIFI_API_MODE=private` in `~/.env`
+- `UNIFI_USERNAME` and `UNIFI_PASSWORD` set
+- Account must NOT have 2FA/SSO enabled
+
+## Requirements
+
+- UniFi configuration in `~/.env`
+- Node.js and pnpm installed
+- Python3 (for JSON formatting, optional)
+
+## Configuration
+
+Ensure your `~/.env` file contains:
+
+```bash
+UNIFI_UDM_URL=https://your-udm-ip
+UNIFI_API_MODE=official
+UNIFI_API_KEY=your-api-key
+UNIFI_SITE_ID=default
+UNIFI_VERIFY_SSL=false
+```
+
+## Notes
+
+- Scripts use `NODE_TLS_REJECT_UNAUTHORIZED=0` for self-signed certificates
+- For production, install proper SSL certificates and remove this workaround
+- Some endpoints may only be available in Private API mode