Build FlowChain product testnet E2E flow

[FlowmemoryAI]

What changed

This PR now builds the FlowChain Product Testnet V1 path on top of the existing local/private stack:

• Adds local runtime support for product-testnet token launch, balances, DEX pools, LP positions, liquidity, swaps, and queryable receipts.
• Extends the control plane with token, pool, LP position, swap, bridge credit, and product-flow read methods plus browser-safe endpoints.
• Adds crypto wallet/product transaction schemas, fixtures, positive vectors, and negative vectors for token launch, pool, liquidity, swap, bridge credit ack, and bridge withdrawal intent.
• Extends the existing dashboard/workbench with product-testnet wallet, token, DEX, swap, explorer, and bridge-test surfaces.
• Wires the Windows beginner setup path to npm run flowchain:product-e2e instead of the older partial smoke path.

Validation

Passed locally:

npm run flowchain:product-e2e

The product E2E report had no missing coverage and verified local account funding, token launch, pool creation, liquidity add/remove, swap execution, product receipts, control-plane methods, dashboard surfaces, bridge-test credit visibility, wallet product transaction vectors, and no-secret boundaries.

Boundary

This is a local/testnet product package. It is not an audited production mainnet, production bridge, production custody layer, or real-funds release.