feat(tron): add settlement pending receipt handling

[roger-gan]

Description

Align TRON settlement_pending behavior with the existing EVM receipt handling model.

• Preserve valid broadcast transaction IDs when receipt confirmation is indeterminate.
• Wait for a low-latency packed execution receipt without adding solidified/finality reconciliation.
• Return terminal failure for explicit reverts while keeping incomplete receipt data pending.
• Validate GasFree relayer transaction IDs and preserve a known hash when later polling fails.
• Remove reconciliation APIs, persisted reconciliation contexts, and Facilitator worker coupling.

Supersedes #97 after the feature branch was renamed.

Tests

• pnpm test -- --reporter=dot — 25 files, 275 tests passed
• pnpm lint:check
• pnpm format:check
• pnpm build

Branch route

• Normal development targets develop
• Only release_* or hotfix/* targets main

Checklist

• Runtime behavior covered by unit tests
• Scheme specifications updated
• Changeset included