Sub-Issue 3: API Routes Update (Summon-Compatible)

[Andre-Diamond]

Problem: API routes assume SDK wallets and fail on Summon wallets.

Tasks:

• Update src/pages/api/v1/freeUtxos.ts to use the Summon capability builder for address resolution.
• Update src/pages/api/v1/nativeScript.ts to return decoded scripts and types for Summon wallets.
• Update src/server/api/routers/transactions.ts to verify script addresses using Summon-derived addresses when appropriate.
• Update src/pages/api/v1/stats/run-snapshots-batch.ts to resolve Summon addresses for balance snapshots.

Affected files:

• src/pages/api/v1/freeUtxos.ts
• src/pages/api/v1/nativeScript.ts
• src/server/api/routers/transactions.ts
• src/pages/api/v1/stats/run-snapshots-batch.ts

Acceptance:

• Summon wallets can fetch UTxOs, scripts, and perform transaction checks without errors.
• Summon wallets can be included in balance snapshot runs without build failures.