feat: finish portfolio title, navigation, and destination effects

Add the approved name animation, rounded docking navigation, localized keyboard focus cue, unified builds card, and destination copy hierarchy.

Introduce lightweight one-shot meteors and a sun ring that repeats every three seconds at Contact. Open the email action in a separate browsing context. Preserve reduced-motion behavior and keep private handoff and visual-check artifacts out of version control.

Validation: 649 tests passed; all 20 failures in world-models and SceneCanvas reproduce on baseline 103427f. Typecheck, artifact verification, and transfer budgets passed. Client/SSR preview build passed before this commit. Existing baseline test failures remain unchanged.

src/styles/world.css

@@ -25,6 +25,11 @@
   block-size: 100%;
 }
 
+/* A still destination grade when motion is disabled; no animation or WebGL. */
+.journey-world[data-static-fallback='true'][data-arrived='true'] .journey-poster {
+  filter: sepia(0.35) saturate(0.85);
+}
+
 .journey-poster {
   object-fit: cover;
   background:
@@ -528,7 +533,7 @@
 
 /* The stationary reading edge supplies the live reveal. View timelines use
    layout positions, which no longer follow the translated content here. */
-.reading-stage[data-reading-stage='live'] .portfolio-section > h2,
+.reading-stage[data-reading-stage='live'] :is(.portfolio-section, .project-stage__lead) > h2,
 .reading-stage[data-reading-stage='live'] .project-case-study__header {
   animation: none;
 }