fix: include sybil fees in shared upload funding

[rjan90]

Summary

This PR is the short-term mitigation for the recent InsufficientLockupFunds failures.

It keeps filecoin-pin's existing funding planner, but patches the shared upload funding path so both the GitHub Action and CLI auto-fund logic include the new-data-set 0.1 USDFC sybil fee.

What changed

• add the WarmStorage new-data-set sybil fee constant to filecoin-pin payment constants
• extend the shared funding planner to accept newDataSetCount and include those fees in the planned deposit
• thread that input through planFilecoinPayFunding()
• update CLI auto-fund to resolve upload contexts and count how many new data sets will be created
• update the upload action to do the same and feed the result into the shared planner
• add targeted unit coverage for the planner and the add/import auto-fund call sites

Why

The failure we hit was caused by funding only the lockup requirement for an upload while omitting the 0.1 USDFC fee charged when a new WarmStorage data set is created.

Because upload-time funding exists in both the upload action and CLI auto-fund flow, the short-term patch should live in the shared planner path rather than only in the action wrapper.

Scope and tradeoff

This is intentionally the tactical fix.

It does not replace filecoin-pin's custom cost planner with Synapse's full upload-cost calculation. Instead, it patches the known missing fee in the existing planner so the immediate failure is addressed with a smaller change set.

The longer-term cleanup direction is in #401.

Validation

• pnpm run build
• pnpm --filter filecoin-pin-upload-action-helper typecheck
• pnpm exec vitest run --project unit src/test/unit/payments-funding.test.ts src/test/unit/add.test.ts src/test/unit/import.test.ts
• pnpm exec biome check src/core/payments/constants.ts src/core/payments/types.ts src/core/payments/funding.ts src/payments/types.ts src/payments/fund.ts src/common/upload-flow.ts src/add/add.ts src/import/import.ts src/test/unit/payments-funding.test.ts src/test/unit/add.test.ts src/test/unit/import.test.ts upload-action/src/filecoin.js

[rjan90]

@juliangruber feel free to take this over, or discard if its totally out of sync with what is needed to unblock #395