Optimize push-to-Dune CI: sync only changed SQL queries

[VaitaR]

What this PR changes

Optimize CI/CD for query sync: on push, only changed queries/*.sql files are pushed to Dune instead of all queries from queries.yml.

Also adds:

• fallback to full sync when diff context is unavailable (FULL_SYNC=true)
• safer query ID extraction/error handling
• README update for new behavior

Is this linked to an existing issue
N/A

Fill out the following table describing your edits:

Original	Updated	Change	Reasoning
.github/workflows/push_to_dune.yml	.github/workflows/push_to_dune.yml	Detect changed SQL files and conditionally run push script	Reduce unnecessary updates and speed up CI
scripts/push_to_dune.py	scripts/push_to_dune.py	Support changed-only sync (CHANGED_QUERY_FILES) with full-sync fallback and ID parsing guards	Update only impacted queries while keeping robust behavior
README.md	README.md	Document changed-only sync and FULL_SYNC=true override	Keep contributor workflow clear

Provide any other context or screenshots that explain or justify the changes above:

Validated locally:

• Python syntax check (py_compile) for scripts/push_to_dune.py
• Workflow YAML parsing

[cursor]

PR Summary

Medium Risk
Changes the CI deploy behavior and query selection logic, so mis-detection or parsing issues could cause intended query updates to be skipped or trigger an unexpected full sync.

Overview
On pushes to main, CI now detects which queries/*.sql files changed and only runs scripts/push_to_dune.py when there are relevant changes; it also fetches full git history and falls back to FULL_SYNC=true when the prior commit SHA isn’t available.

push_to_dune.py is updated to support changed-only sync via CHANGED_QUERY_FILES, adds safer query-id parsing/validation and early exits, and documents the new behavior (including the FULL_SYNC=true override) in README.md.

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