feat(python): add utils

[noa-starkware]

Note

Introduces Python utilities for StarkNet (accounts, declare/deploy, multicall, events, tx build/sign/serialize) and a Dune query helper, adding the dune-client dependency.

• Python Utilities:
  • StarkNet helpers (python/utils/starknet_py_utils.py):
    • Node/account setup (FullNodeClient, keystore-based Account).
    • Contract workflows: declare, deploy, invoke/call, multicall.
    • Event fetching (chunked, last-event), ABI retrieval (local/node).
    • Upgrade support: prepare and execute upgrade calls (JSON and calldata forms).
    • Transaction utilities: build InvokeV3, fee estimation, hash/signature handling, JSON serialization/deserialization, send tx.
  • Starkli helpers (python/utils/starkli_utils.py):
    • Extract private key from keystore; Ledger sign-hash and public-key retrieval via starkli CLI.
  • General utils (python/utils/utils.py):
    • Debug logging toggle, list chunking, value normalization to hex, JSON load/store.
• Dune Integration:
  • python/utils/dune_utils.py: query_dune to run queries with optional max_block param.
• Dependencies:
  • Add pinned dune-client==1.7.10 to python/pyproject.toml.```}

^{Written by Cursor Bugbot for commit 5689833. This will update automatically on new commits. Configure here.}

---

This change is 

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (main@5de28fd). Learn more about missing BASE report.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #133   +/-   ##
=======================================
  Coverage        ?   89.36%           
=======================================
  Files           ?       43           
  Lines           ?     2464           
  Branches        ?        0           
=======================================
  Hits            ?     2202           
  Misses          ?      262           
  Partials        ?        0           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[omri-ba-starkware]

@omri-ba-starkware reviewed 5 of 5 files at r1, 1 of 1 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @RoeeGross)