fix(verify-geometry): recognize wider label masks (#84)

Extend the verified label-mask width range to 200px while retaining the 14px height cap, with adversarial and shipped-asset coverage, and publish synchronized plugin version 2.4.7.

.claude-plugin/plugin.json

@@ -1,7 +1,7 @@
 {
   "name": "diagram-design",
   "description": "Create branded architecture, IT current-state, flowchart, sequence, state machine, ER/data model, timeline, swimlane, quadrant, radar/spider, loop/flywheel, nested, tree, org chart, layer stack, Venn, pyramid/funnel, bar, line, Gantt and scatter charts, high-level, process, medallion, data flow, DP integration, or DP security matrix diagrams as standalone HTML/SVG/PNG. Redraw .drawio/.drawio.png/.drawio.svg or Mermaid .mmd sources at a chosen size/detail; onboard brand tokens from a website; add semantic patterns, callouts, accessible motion, or sketchy/hand-drawn styling.",
-  "version": "2.4.6",
+  "version": "2.4.7",
   "author": {
     "name": "Cathryn Lavery",
     "url": "https://github.com/cathrynlavery"

.codex-plugin/plugin.json

@@ -1,7 +1,7 @@
 {
   "name": "diagram-design",
   "description": "Create branded architecture, IT current-state, flowchart, sequence, state machine, ER/data model, timeline, swimlane, quadrant, radar/spider, loop/flywheel, nested, tree, org chart, layer stack, Venn, pyramid/funnel, bar, line, Gantt and scatter charts, high-level, process, medallion, data flow, DP integration, or DP security matrix diagrams as standalone HTML/SVG/PNG. Redraw .drawio/.drawio.png/.drawio.svg or Mermaid .mmd sources at a chosen size/detail; onboard brand tokens from a website; add semantic patterns, callouts, accessible motion, or sketchy/hand-drawn styling.",
-  "version": "2.4.6",
+  "version": "2.4.7",
   "author": {
     "name": "Cathryn Lavery",
     "url": "https://github.com/cathrynlavery"

docs/adr/0005-label-geometry-is-verified.md

@@ -32,8 +32,13 @@ three variants at a time.
 - Geometric contracts in this repo are expressed as checkers with fixtures, in line with how
   the import extractors are verified. A rule that only lives in prose is a rule that ships
   broken examples.
-- The heuristics are shape-based (node ≥ 60×40, mask 20–120 × 8–14) and match the shipped
+- The heuristics are shape-based (node ≥ 60×40, mask 20–200 × 8–14) and match the shipped
   templates. A future type with markedly different proportions may need the thresholds
   revisited — widen them in the checker, and add the case to the adversarial tests.
+  (The width cap was originally 120; the long mono plates in example-sequence-oauth.html
+  are 128 wide and fell outside the window, so every mask past 120 — including the wider
+  plates CJK labels produce — went unverified. Widened to 200 with the height cap kept at
+  14: raising it to 18 would misclassify ~80 shipped rects — zone eyebrows, container
+  header bars, row stripes — as masks.)
 - The checker does not evaluate the 6–10px connector gap from rule 2, which needs stroke
   geometry rather than rectangles. That rule remains a checklist item.

scripts/test-verify-geometry.py

@@ -14,6 +14,7 @@ ASSET_DIR = ROOT / "skills/diagram-design/assets"
 ARCHITECTURE = ASSET_DIR / "example-architecture.html"
 SWIMLANE = ASSET_DIR / "example-swimlane.html"
 ZONED = ASSET_DIR / "example-dp-integration.html"
+SEQUENCE_OAUTH = ASSET_DIR / "example-sequence-oauth.html"
 
 
 def load_verifier():
@@ -99,9 +100,30 @@ def main() -> int:
         0,
     )
 
+    # A long mono plate (128px, as shipped in example-sequence-oauth.html) or a
+    # wide CJK label plate must be recognized as a mask and checked like any other.
+    check(
+        "wide mono mask clipped by a later node",
+        document('<rect x="180" y="80" width="128" height="12" rx="2" fill="#f5f5f5"/>' + node),
+        1,
+    )
+    check(
+        "wide mono mask over an earlier node is legal",
+        document(node + '<rect x="180" y="80" width="128" height="12" rx="2" fill="#f5f5f5"/>'),
+        0,
+    )
+    # Wide-but-tall rects are container header bars or row stripes, not masks —
+    # the height cap stays at 14 so they are never reported.
+    check(
+        "container header bar is not a mask",
+        document('<rect x="80" y="80" width="188" height="16" rx="2" fill="#eee"/>' + node),
+        0,
+    )
+
     check_file("shipped architecture example", ARCHITECTURE, 0)
     check_file("shipped swimlane example", SWIMLANE, 0)
     check_file("shipped zoned example", ZONED, 0)
+    check_file("shipped sequence-oauth example", SEQUENCE_OAUTH, 0)
 
     if failures:
         print("\nFAILURES:")

scripts/verify-geometry.py

@@ -17,8 +17,10 @@ Paint order is what makes this a defect rather than a stylistic choice:
 Shape heuristics follow the shipped templates:
 
 * A node is a `<rect>` at least 60x40 - large enough for a title and sublabel.
-* A label mask is a `<rect>` 20-120 wide and 8-14 tall - the masking plate that
-  SKILL.md prescribes for arrow labels and zone eyebrows.
+* A label mask is a `<rect>` 20-200 wide and 8-14 tall - the masking plate that
+  SKILL.md prescribes for arrow labels and zone eyebrows. The width cap covers
+  the long mono plates shipped in example-sequence-oauth.html (128px) and the
+  wider plates CJK labels need at the same glyph count.
 * A mask fully contained in a node is a badge chip (`EXT`, `EDGE`, `ORIG`) and
   is legal.
 
@@ -49,7 +51,7 @@ RECT_RE = re.compile(
 NODE_MIN_W = 60.0
 NODE_MIN_H = 40.0
 MASK_MIN_W = 20.0
-MASK_MAX_W = 120.0
+MASK_MAX_W = 200.0
 MASK_MIN_H = 8.0
 MASK_MAX_H = 14.0
 EPSILON = 0.5