fix(cli): keep overlap waivers local to marked text (#3464)

* fix(cli): scope overlap waiver to marked text

* fix(skills): guard changelog caption rail

* fix(skills): densify changelog caption checks

* test(skills): satisfy strict seek typing

.agents/skills/changelog-video/SKILL.md

@@ -145,9 +145,10 @@ scaffold.
 
 ### 6 · Gates (all green before presenting)
 
-1. `bun run --cwd packages/cli hyperframes check` (or the installed
+1. `bun run --cwd packages/cli hyperframes check --caption-zone "x0=0;y0=.90;x1=1;y1=1;severity=error;seek=.02,.06,.10,.14,.18,.22,.26,.30,.34,.38,.42,.46,.50,.54,.58,.62,.66,.70,.74,.78,.82,.86,.90,.94,.98"` (or the installed
    `hyperframes` CLI from the repo-local `skills/hyperframes-cli/` skill) —
-   0 errors (contrast: dim text ≥ .66 alpha). Do NOT reach for
+   0 errors (contrast: dim text ≥ .66 alpha; scene content stays above the
+   caption rail). Do NOT reach for
    `npx hyperframes@latest`; the tracked repo-local CLI is the source of
    truth for the composition contract this skill produces against.
 2. `seam-gate.mjs verify` — 0 fail.

.agents/skills/changelog-video/examples/master-skeleton.html

@@ -48,7 +48,7 @@
     <div id="bg-scrim"></div>
     <div id="kicker-chip" class="chrome">HYPERFRAMES WEEKLY <span style="color:rgba(245,246,244,.66)">· <RANGE></span></div>
     <div id="progress" class="chrome"><span class="dot" id="dot1"></span><!-- one per theme --></div>
-    <div id="cap-line" class="chrome" data-layout-allow-overlap></div>
+    <div id="cap-line" class="chrome" data-layout-allow-caption-zone></div>
 
     <!-- Title (film open — authors its OWN entry; exit is stamped) -->
     <div id="s-title" class="slide clip" data-start="0" data-duration="<CUT1>" data-track-index="1">
@@ -57,8 +57,9 @@
 
     <!-- One slide per theme. data-start = EXACTLY the ledger cut time.
          Shell composed at local t=0; internal beats ≥0.4s after the cut,
-         done ≥0.45s before the next. data-layout-allow-overlap on mock slides. -->
-    <div id="s-t1" class="slide clip" data-start="<CUT1>" data-duration="<DUR1>" data-track-index="1" data-layout-allow-overlap>
+         done ≥0.45s before the next. Put data-layout-allow-overlap only on
+         the specific text blocks that deliberately layer. -->
+    <div id="s-t1" class="slide clip" data-start="<CUT1>" data-duration="<DUR1>" data-track-index="1">
       <div class="sec-chip">01 · <THEME></div>
       <div class="sec-head"><HEADLINE></div>
       <!-- the mock, from references/visualization-registry.md, y ∈ [288, 944] -->

.agents/skills/changelog-video/references/build-spec.md

@@ -102,8 +102,8 @@ otherwise) and must stay flat 2D (no 3D ancestors).
 ## Lint/check gotchas (all hit before, all pre-solved)
 
 - Mock containers with intentional stacking: `data-layout-allow-overlap` on
-  the slide root; elements a playhead/line crosses:
-  `data-layout-allow-occlusion`.
+  each text block that deliberately participates, never on the slide root;
+  elements a playhead/line crosses: `data-layout-allow-occlusion`.
 - Dim text: `rgba(245,246,244,.66)` minimum (contrast gate).
 - Audio: every `<audio>` carries an `id`. BGM: the house track ships at
   `<SKILL_DIR>/assets/bgm.mp3` (159s instrumental) — copy it to the project