The content stylesheet's focus, forced colours, input size and target size meet specification.website #3551

For: the design system's own ratchet (#2678, #2939) paid down one file at a time, so the forge reads as one product and respects people who ask for less motion or forced colours.

Done:

• [ ] src/web/style/content.ts has forced: 0, focus: 0, input: 0, target: 0 in the baseline (1, 1, 2, 2 today). Do not touch its motion rules (another issue owns them).
• [ ] Run bun scripts/design-lint.ts --update so docs/design/baseline.json records the lower number, and bun scripts/design-lint.ts passes. The pull carries a before/after screenshot of one page that uses these rules, in light and dark, showing nothing changed by eye. Touch only the file named; a rule another file needs stays where it is.

Files: src/web/style/content.ts, docs/design/baseline.json. Risk: a rule rewritten by hand changes how a page looks; the screenshots are the proof it did not.