[autorevert] add signal extraction layer for transforming CI data into Signal objects

[izaitsevfb]

Implementation of the signal extraction layer and visual report generation utility.

Testing

python -m pytorch_auto_revert hud Lint trunk pull inductor  --hours 32  --ignore-newer-than 30e16d638953d2 --out hud01.html
INFO:root:[hud] Start: workflows=Lint,trunk,pull,inductor hours=32 repo=pytorch/pytorch
INFO:root:[hud] Extracting signals ...
INFO:pytorch_auto_revert.signal_extraction_datasource:[extract] Fetching jobs: repo=pytorch/pytorch workflows=Lint,trunk,pull,inductor lookback=32h
INFO:pytorch_auto_revert.signal_extraction_datasource:[extract] Jobs fetched: 30018 rows in 38.83s
INFO:pytorch_auto_revert.signal_extraction_datasource:[extract] Fetching tests for 6899 job_ids (622 failed jobs) in batches
INFO:pytorch_auto_revert.signal_extraction_datasource:[extract] Test batch 1/7 (size=1024)
INFO:pytorch_auto_revert.signal_extraction_datasource:[extract] Test batch 2/7 (size=1024)
INFO:pytorch_auto_revert.signal_extraction_datasource:[extract] Test batch 3/7 (size=1024)
INFO:pytorch_auto_revert.signal_extraction_datasource:[extract] Test batch 4/7 (size=1024)
INFO:pytorch_auto_revert.signal_extraction_datasource:[extract] Test batch 5/7 (size=1024)
INFO:pytorch_auto_revert.signal_extraction_datasource:[extract] Test batch 6/7 (size=1024)
INFO:pytorch_auto_revert.signal_extraction_datasource:[extract] Test batch 7/7 (size=755)
INFO:pytorch_auto_revert.signal_extraction_datasource:[extract] Tests fetched: 16681 rows for 6899 job_ids in 23.41s
INFO:root:[hud] Extracted 222 signals
INFO:root:[hud] Applied ignore-newer-than=30e16d638953d2; dropped 7770 newer commit entries across signals
INFO:root:[hud] Building grid model ...
INFO:root:[hud] Model: 52 commits, 222 columns
INFO:root:[hud] Rendering HTML ...
INFO:root:[hud] HUD written to hud01.html
INFO:root:HUD written to hud01.html

hud01.html

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1 Skipped Deployment

Project	Deployment	Preview	Updated (UTC)
torchci	Ignored	Preview	Sep 13, 2025 0:23am

[jeanschmidt]

LGTM, just need to check lintrunner :)

[izaitsevfb]

LGTM, just need to check lintrunner :)

lintrunner is lying: #7161