Oracle: goldens for the three fixtures the merge added

`tests/fixtures/antipatterns/` gained `flat-type-hierarchy.html` (#702) and
`linked-url-patterns.{css,html}` (#709) with the merge, so the corpus
generator produced six `detect-fixture-*` cases with no goldens and the
directory-wide cases (`detect-dir-*`, `detect-scope-*`, `detect-no-advisory-*`)
moved.

Every golden here was recorded from the binary and then cross-checked against
`node cli/bin/cli.js` on an origin/main worktree over the same files: the six
per-fixture cases agree byte for byte in JSON and text, and a full scan of
`tests/fixtures/antipatterns` produces 432 findings identical on both engines
after normalizing the repo path.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vau2X53xGTjjTCXWMVBoNY

tests/oracle/golden/detect-dir-quiet-all-fixtures.json

@@ -1,6 +1,6 @@
 {
   "stdout": "",
-  "stderr": "412 anti-patterns found.\n2 advisory notes (not counted).\n",
+  "stderr": "415 anti-patterns found.\n17 advisory notes (not counted).\n",
   "exit": 2,
   "signal": null,
   "files": {}

tests/oracle/golden/detect-fixture-json-flat-type-hierarchy-html.json

@@ -0,0 +1,7 @@
+{
+  "stdout": "[\n  {\n    \"antipattern\": \"flat-type-hierarchy\",\n    \"name\": \"Flat type hierarchy\",\n    \"description\": \"Dominant heading and body roles are separated by less than 1.25× at every step, leaving the size hierarchy flat. Add at least one stronger size step.\",\n    \"severity\": \"warning\",\n    \"category\": \"slop\",\n    \"file\": \"<REPO>/tests/fixtures/antipatterns/flat-type-hierarchy.html\",\n    \"line\": 0,\n    \"snippet\": \"Role sizes: body 16px, h2 16px, h1 18px (largest adjacent step 1.13:1; target 1.25:1)\"\n  }\n]\n",
+  "stderr": "",
+  "exit": 2,
+  "signal": null,
+  "files": {}
+}

tests/oracle/golden/detect-fixture-json-linked-url-patterns-css.json

@@ -0,0 +1,7 @@
+{
+  "stdout": "[\n  {\n    \"antipattern\": \"gradient-text\",\n    \"name\": \"Gradient text\",\n    \"description\": \"Gradient text is decorative rather than meaningful — a common AI tell, especially on headings and metrics. Use solid colors for text.\",\n    \"severity\": \"warning\",\n    \"category\": \"slop\",\n    \"file\": \"<REPO>/tests/fixtures/antipatterns/linked-url-patterns.css\",\n    \"line\": 184,\n    \"snippet\": \"background-clip: text + gradient\"\n  },\n  {\n    \"antipattern\": \"bounce-easing\",\n    \"name\": \"Bounce or elastic easing\",\n    \"description\": \"Bounce and elastic easing feel dated and tacky. Real objects decelerate smoothly — use exponential easing (ease-out-quart/quint/expo) instead.\",\n    \"severity\": \"warning\",\n    \"category\": \"slop\",\n    \"file\": \"<REPO>/tests/fixtures/antipatterns/linked-url-patterns.css\",\n    \"line\": 34,\n    \"snippet\": \"animation: bounce-linked-pseudo\"\n  },\n  {\n    \"antipattern\": \"bounce-easing\",\n    \"name\": \"Bounce or elastic easing\",\n    \"description\": \"Bounce and elastic easing feel dated and tacky. Real objects decelerate smoothly — use exponential easing (ease-out-quart/quint/expo) instead.\",\n    \"severity\": \"warning\",\n    \"category\": \"slop\",\n    \"file\": \"<REPO>/tests/fixtures/antipatterns/linked-url-patterns.css\",\n    \"line\": 57,\n    \"snippet\": \"cubic-bezier(0.34, 1.56, 0.64, 1)\"\n  },\n  {\n    \"antipattern\": \"layout-transition\",\n    \"name\": \"Layout property animation\",\n    \"description\": \"Animating width, height, padding, or margin causes layout thrash and janky performance. Use transform and opacity instead, or grid-template-rows for height animations.\",\n    \"severity\": \"warning\",\n    \"category\": \"quality\",\n    \"file\": \"<REPO>/tests/fixtures/antipatterns/linked-url-patterns.css\",\n    \"line\": 191,\n    \"snippet\": \"transition: width\"\n  },\n  {\n    \"antipattern\": \"codex-grid-background\",\n    \"name\": \"Decorative grid-line background\",\n    \"description\": \"A decorative grid or line-field background drawn with hairline linear-gradient layers tiled by a fixed pixel cell is a recurring generated-UI signature. Reserve grid overlays for actual canvas, map, blueprint, or measurement surfaces; elsewhere use product structure or a plain surface.\",\n    \"severity\": \"advisory\",\n    \"category\": \"slop\",\n    \"file\": \"<REPO>/tests/fixtures/antipatterns/linked-url-patterns.css\",\n    \"line\": 2,\n    \"snippet\": \"two-axis grid-line gradient background\",\n    \"advisory\": true\n  }\n]\n",
+  "stderr": "",
+  "exit": 2,
+  "signal": null,
+  "files": {}
+}

tests/oracle/golden/detect-fixture-text-flat-type-hierarchy-html.json

@@ -0,0 +1,7 @@
+{
+  "stdout": "",
+  "stderr": "\n<REPO>/tests/fixtures/antipatterns/flat-type-hierarchy.html\n  [flat-type-hierarchy] Role sizes: body 16px, h2 16px, h1 18px (largest adjacent step 1.13:1; target 1.25:1)\n    → Dominant heading and body roles are separated by less than 1.25× at every step, leaving the size hierarchy flat. Add at least one stronger size step.\n\n1 anti-pattern found.\n",
+  "exit": 2,
+  "signal": null,
+  "files": {}
+}

tests/oracle/golden/detect-fixture-text-linked-url-patterns-css.json

@@ -0,0 +1,7 @@
+{
+  "stdout": "",
+  "stderr": "\n<REPO>/tests/fixtures/antipatterns/linked-url-patterns.css\n  line 184: [gradient-text] background-clip: text + gradient\n    → Gradient text is decorative rather than meaningful — a common AI tell, especially on headings and metrics. Use solid colors for text.\n  line 34: [bounce-easing] animation: bounce-linked-pseudo\n    → Bounce and elastic easing feel dated and tacky. Real objects decelerate smoothly — use exponential easing (ease-out-quart/quint/expo) instead.\n  line 57: [bounce-easing] cubic-bezier(0.34, 1.56, 0.64, 1)\n    → Bounce and elastic easing feel dated and tacky. Real objects decelerate smoothly — use exponential easing (ease-out-quart/quint/expo) instead.\n  line 191: [layout-transition] transition: width\n    → Animating width, height, padding, or margin causes layout thrash and janky performance. Use transform and opacity instead, or grid-template-rows for height animations.\n\n4 anti-patterns found.\n\n── Advisory (not counted as failures) ──\n\n<REPO>/tests/fixtures/antipatterns/linked-url-patterns.css\n  line 2: [codex-grid-background] two-axis grid-line gradient background\n    → A decorative grid or line-field background drawn with hairline linear-gradient layers tiled by a fixed pixel cell is a recurring generated-UI signature. Reserve grid overlays for actual canvas, map, blueprint, or measurement surfaces; elsewhere use product structure or a plain surface.\n\n1 advisory note. Suppress with --no-advisory.\n",
+  "exit": 2,
+  "signal": null,
+  "files": {}
+}

tests/oracle/golden/detect-fixture-text-linked-url-patterns-html.json

@@ -0,0 +1,7 @@
+{
+  "stdout": "",
+  "stderr": "\n<REPO>/tests/fixtures/antipatterns/linked-url-patterns.html\n  [low-contrast] 1.4:1 (need 4.5:1) — text #ffffff on #d9d9d9\n    → Text does not meet WCAG AA contrast requirements (4.5:1 for body, 3:1 for large text). Increase the contrast between text and background.\n  [low-contrast] 1.0:1 (need 4.5:1) — text #ffffff on #fafafa\n    → Text does not meet WCAG AA contrast requirements (4.5:1 for body, 3:1 for large text). Increase the contrast between text and background.\n  [low-contrast] 1.0:1 (need 4.5:1) — text #ffffff on #fafafa\n    → Text does not meet WCAG AA contrast requirements (4.5:1 for body, 3:1 for large text). Increase the contrast between text and background.\n  [gradient-text] background-clip: text + gradient\n    → Gradient text is decorative rather than meaningful — a common AI tell, especially on headings and metrics. Use solid colors for text.\n  [pulsing-dot] .linked-pulse-dot — 8x8px dot with infinite \"linked-signal-cycle\" animation\n    → Small pulsing status dots simulate liveness decoratively. Reserve pulse animation for indicators tied to genuinely live, changing data; a static indicator with clear labeling is honest and calmer.\n  [organic-clip-path] clip-path: polygon() with 16 vertices approximating an organic contour\n    → A clip-path polygon with many arbitrary vertices, or a curved clip-path path(), is CSS approximating a torn edge, blob, or silhouette. It reads as the cheap version of the effect and is usually a produced or photographic material replaced with code. Derive an alpha matte from the real image, or ship the shape as a cut-out raster; keep clip-path for geometry (cut corners, diagonals, hexagons).\n  [marquee] .linked-marquee — infinite horizontal loop animation \"linked-horizontal-loop\"\n    → Continuously auto-scrolling content demands attention it has not earned and hides half its content at any moment. Reserve motion for content that changes; let readers move at their own pace.\n  [marquee] .overridden-keyframes-animation — infinite horizontal loop animation \"overridden-horizontal-loop\"\n    → Continuously auto-scrolling content demands attention it has not earned and hides half its content at any moment. Reserve motion for content that changes; let readers move at their own pace.\n  [marquee] .layered-keyframes-animation — infinite horizontal loop animation \"layered-horizontal-loop\"\n    → Continuously auto-scrolling content demands attention it has not earned and hides half its content at any moment. Reserve motion for content that changes; let readers move at their own pace.\n  [marquee] /* Chromium makes nested keyframes globally available even while the enclosing\n   container condition is false, so this live reference must still scan. */\n.inactive-container-animation-reference — infinite horizontal loop animation \"inactive-container-horizontal-loop\"\n    → Continuously auto-scrolling content demands attention it has not earned and hides half its content at any moment. Reserve motion for content that changes; let readers move at their own pace.\n  [marquee] .active-container-animation-reference — infinite horizontal loop animation \"active-container-horizontal-loop\"\n    → Continuously auto-scrolling content demands attention it has not earned and hides half its content at any moment. Reserve motion for content that changes; let readers move at their own pace.\n  [radial-halo] radial-gradient halo (#506fff → transparent) on dark page\n    → A chromatic radial-gradient wash — saturated at the center, fading to transparent — used as a decorative background glow on a dark page. Same tell as glowing shadows, drawn with a gradient instead of a shadow. Ground the surface with a solid or subtly shifted background instead.\n\n12 anti-patterns found.\n\n── Advisory (not counted as failures) ──\n\n<REPO>/tests/fixtures/antipatterns/linked-url-patterns.html\n  [repeating-stripes-gradient] repeating-gradient decorative stripes\n    → Repeating-gradient stripes used as surface decoration are a recurring generated-UI signature. Reach for a deliberate texture or leave the surface plain.\n  [codex-grid-background] two-axis grid-line gradient background\n    → A decorative grid or line-field background drawn with hairline linear-gradient layers tiled by a fixed pixel cell is a recurring generated-UI signature. Reserve grid overlays for actual canvas, map, blueprint, or measurement surfaces; elsewhere use product structure or a plain surface.\n\n2 advisory notes. Suppress with --no-advisory.\n",
+  "exit": 2,
+  "signal": null,
+  "files": {}
+}