[TaherEzzi]

Summary

This Pull Request resolves issue #9: Soroban error taxonomy table.

Root Cause & Changes

errors:
  - code: TRAPPED
    category: Contract Execution
    plain_english: The contract encountered an unrecoverable error during execution
    common_cause: Invalid input parameters or contract code bug
    fix: Validate inputs and inspect contract logs for specific trap cause
    docs_url: https://soroban.stellar.org/docs/fundamentals-and-concepts/errors#trapped

  - code: INSUFFICIENT_REFUNDABLE_FEE
    category: Resource Management
    plain_english: Tra

### Files Modified

apps/api/src/hackproof/routes.py | 156 +++++---------------------
apps/api/src/hackproof/tests/test_errors.yaml | 21 ++++
apps/web/src/App.tsx | 12 ++
apps/web/src/pages/errors.tsx | 62 ++++++++++
config/soroban-errors.yaml | 28 +++++
5 files changed, 153 insertions(+), 126 deletions(-)

### Verification
- Tested with regression unit tests.
- Code conforms to standard project lint/formatting.

Closes #9
Fixes #9
/claim

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