Homepage: cut repeats, add icons, drop blur and the Twitter script

Remove the dark gate animation, the hero stickers, the bobbing badges and the fixed gradient wash
Glass blur becomes a solid surface, so scrolling does not repaint behind every card
Build log renders as plain text. The X widget script and the animated road are gone
Proof and PRs share one section. The PR tile no longer repeats the carousel links
Three answers (bisect, prereqs, audit), each with an icon. Bisect shows the finding and the next step, PR dbt #10149
Tools: each tool caught a real bug. neatlogs shows the incident, investigation, fix 2de852f and proof
cfo.ai card points to the plan instead of retelling it. Compare table folds behind a click
Nav goes from 10 links to 6. Latest runs skip repeated titles

Entire-Checkpoint: 01M4KEYH71XPHMDNNHNRY4QJ9X

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