feat(explorer): dual-chain wallet metadata, native coin pricing, and UI refresh.

Add Chain 138 wallet network metadata and stats coin-price enrichment; sync frontend explorer SPA, command center, and address/token pages with backend config.

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

docs/CHAIN138_VISUAL_TOPOLOGY_SOURCE.md

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+# Chain 138 visual topology — command center source
+
+Canonical maintainer doc for `frontend/public/chain138-command-center.html` (live at `/chain138-command-center.html` and `/topology`).
+
+Diagrams are **informational**; live addresses and guardrails are served by the explorer:
+
+- `/protocols` and `/token-aggregation/api/v1/report/official-protocols`
+- `/pools`, `/liquidity`, `/routes`
+- `/bridge` (managed relay fleet + CCIP lane health)
+- `/docs/gru`, `/docs/posture-glossary`, `/docs/transaction-review`
+
+## PMM production canon (Chain 138)
+
+| Role | Address |
+|------|---------|
+| DODOPMMIntegration Stack A (live) | `0x86ADA6Ef91A3B450F89f2b751e93B1b7A3218895` |
+| DODOPMMProvider Stack A (live) | `0x3f729632E9553EBacCdE2e9b4c8F2B285b014F2e` |
+| EnhancedSwapRouter (live) | `0xE6Cc7643ae2A4C720A28D8263BC4972905d7DE0f` |
+| Stack B integration (do not wire) | `0x5BDc62f1ae7D630c37A8B363a1d49845356Ee72d` |
+
+EnhancedSwapRouterV2 remains a planned Phase 4b deploy; it is not the default production router.
+
+## Managed relay lanes (explorer `/bridge`)
+
+`mainnet_weth`, `mainnet_cw`, `bsc`, `avax`, `avax_cw`, `avax_to_138`
+
+## External references (proxmox monorepo)
+
+When editing diagrams, cross-check:
+
+- `docs/11-references/PMM_DEX_ROUTING_STATUS.md`
+- `docs/11-references/CONTRACT_ADDRESSES_REFERENCE.md`
+- `docs/11-references/EXPLORER_TOKEN_LIST_CROSSCHECK.md` (§5 canonical tokens)
+
+Bundle metadata: `frontend/public/chain138-command-center.meta.json` (refresh via `scripts/refresh-chain138-command-center-meta.sh`).