Dushyant Singh Hada de9e90df45 fix: resolve duplicate migration version 20 collision (#2294) ... Two PRs (#2193, #2200) merged ~2h apart each added a migration file numbered 0020, since each branch only saw one such file at CI time and neither was rebased against the other before merge. Renumbers 0020_pr_reviews.sql to 0021_pr_reviews.sql. TestMigrationVersionsAreUnique already existed and is correct; it didn't catch this because it only runs against each PR's branch state, not the merged result of both PRs together.		2026-06-30 11:23:54 +05:30
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0001_init.sql	…
0002_remove_activity_source.sql	…
0003_add_session_display_name.sql	…
0004_scm_observer_schema.sql	…
0005_pr_last_nudge_signature.sql	…
0006_pr_session_changed_cdc.sql	…
0007_allow_implemented_harnesses.sql	…
0008_add_project_config.sql	…
0009_workspace_projects.sql	…
0010_add_first_signal_at.sql	…
0011_notifications.sql	…
0012_add_review_tables.sql	…
0013_review_run_unique_sha.sql	…
0014_review_run_retry_failed.sql	…
0015_telemetry_events.sql	…
0016_review_run_github_review_id.sql	…
0017_add_session_preview_url.sql	…
0018_review_run_delivered_at.sql	…
0019_add_session_preview_revision.sql	…
0020_review_run_unique_pr_sha.sql	…
0021_pr_reviews.sql	…