Strict proof equivalence check without warnings, tolerant warned count; fix zoom docs

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

crates/gpu/tests/equivalence.rs

@@ -909,7 +909,12 @@ fn soft_proofs_match() {
                 saturated(&mut s);
                 let proof = Some(Proof { space, dest_warning, display_warning, profile: 0 });
                 let req = RenderRequest { space: out, proof, ..RenderRequest::fit(640, 640) };
-                check_warned(&format!("proof {space:?} → {out:?} warn {dest_warning}/{display_warning}"), &src, &raw, &s, &req);
+                let name = format!("proof {space:?} → {out:?} warn {dest_warning}/{display_warning}");
+                if dest_warning || display_warning {
+                    check_warned(&name, &src, &raw, &s, &req);
+                } else {
+                    check(&name, &src, &raw, &s, &req);
+                }
             }
         }
     }
@@ -924,7 +929,8 @@ fn soft_proofs_match() {
     let warned = |i: &Rgba8| i.data.iter().filter(|p| p[1] == 0 && p[2] == 0 && p[0] > 200).count();
     let (cpu, gpu) = (render(&src, &raw, &s, &req).image, lightcraft_gpu::render(&src, &raw, &s, &req, None).expect("gpu render").image);
     assert!(warned(&cpu) > 100, "{} warned pixels", warned(&cpu));
-    assert_eq!(warned(&cpu), warned(&gpu));
+    let (a, b) = (warned(&cpu), warned(&gpu));
+    assert!(a.abs_diff(b) as f64 <= 1e-4 * cpu.data.len() as f64, "warned pixels: CPU {a}, GPU {b}");
     // an output-device profile (a 3D table) stays on the CPU
     let n = 2;
     let lut = lightcraft_pipeline::ProofLut::new(n, vec![[0.5, 0.5, 0.5, 0.0]; n * n * n]).unwrap();

docs/ui-parity.md

@@ -27,7 +27,7 @@ assessment and the notes that don't fit a row. Visual reference for agents: `pla
 | Crop, Upright, transform handles | handles, aspect lock, angle, overlays (O / ⇧O), guided Upright | ✅ all of them; overlay cycle on ⇧O | 85% | crop opacity of cut-out area (15.5) |
 | Masking tools | brush (A / B, flow, density, auto mask, pressure), linear / radial, range masks, AI masks, pins | brush, linear, radial, colour / luminance range, add / subtract / intersect / invert, masks panel, pins | 60% | brush live preview (#517 / #518), no pen pressure, no depth range, AI masks, Feather / Edge controls (15.5) |
 | Remove / heal | content-aware remove, heal, clone, visualize spots | heal, clone, auto source, visualize spots, red / pet eye | 65% | content-aware (patch synthesis) remove, generative remove, detect distractions |
-| Zoom and navigation | Fit / Fill / 1:1 / 2:1 … 11:1, Navigator, spacebar pan | Fit to 800%, pinch zoom, pan, Navigator-like | 60% | every view, mask and diagnostic overlays (Visualize Spots, Point Color range, HDR range) and soft proofing included, is sharp at 1:1–8:1 |
+| Zoom and navigation | Fit / Fill / 1:1 / 2:1 … 11:1, Navigator, spacebar pan | Fit to 800%, pinch zoom, pan, Navigator-like; every view, mask and diagnostic overlays (Visualize Spots, Point Color range, HDR range) and soft proofing included, is sharp at 1:1–8:1 | 60% | zoom stops at 800 % (Adobe's reference goes to 11:1) |
 | Library culling and metadata | ratings, flags, labels with keys, painter, keywording, metadata panel, filter bar | ratings / flags / labels and advance, keyword list and sets, keywording box, metadata fields, smart albums, filter bar | 85% | painter tool, quick collection, some Classic keys |
 | Shortcuts | Lightroom desktop and Classic keymaps | Lightroom-desktop keymap with Classic additions, editable | 85% | deliberate differences below; no Classic keymap layer |
 | Context menus | everywhere | 26 sites (grid, filmstrip, albums, folders, keywords, masks, presets…) | 70% | unaudited against Lightroom's menus item by item |