336e48a7dd
Add Phase 4 stub classifiers for Watermark and Formula block kinds. Full detection deferred to Phase 7 per plan section 4.4 (line 1709) and 4.6 watermark note (line 1752). Changes: - Create crates/pdftract-core/src/layout/watermark_formula.rs with classify_watermark() and classify_formula() stubs returning false - Update crates/pdftract-core/src/layout/mod.rs to export the stubs - Add comprehensive module documentation linking to Phase 7 research Acceptance criteria: - BlockKind::Watermark and BlockKind::Formula variants exist (pre-existing) - classify_watermark always false - classify_formula always false - No v0.1.0 block has kind=Watermark or Formula Refs: pdftract-3jekw |
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| .. | ||
| pdftract-cer-diff | ||
| pdftract-cli | ||
| pdftract-core | ||
| pdftract-libpdftract | ||
| pdftract-py | ||