feat(overlay): draw selected and tracked map cards as a Vue component, without the accent bar

Detail and selected cards and annotation callouts no longer carry a coloured
bar down their left edge. The world overlay still solves each card's place and
paints its leader; WorldOverlayCards draws the plate and text of selected and
tracked cards at that rectangle, positioned by a transform written each
painted frame. ?overlayCards=all draws ambient detail cards the same way and
?overlayCards=off paints every card on the canvas.

Co-Authored-By: Claude Fable 5.2 <[email protected]>

docs/CURRENT-STATE.md

@@ -6293,6 +6293,7 @@ silently demoting every later lookup for the session.
 - Nearby examples in the context panel are focus controls: they use their owning layer's existing selection/tracking path, then frame that contact. Static-installation distances use ellipsoidal surface distance so the count matches the ground-projected context disk.
 - Context selection transfers camera ownership by subject type: selecting a civilian or military flight keeps that layer's moving follow camera, while selecting an AIS vessel or mapped installation first releases any prior aircraft tracker and performs only the source layer's one-time framing. The camera therefore remains user-controlled after non-aircraft selection instead of continuing to move with the previously selected plane.
 - Selected AIS vessels use their layer-owned full-detail presentation model in the shared world-overlay host; mapped installations promote their own entry to a selected card. Both remain crisp above post-processing without duplicate selected labels; non-selected AIS cards retain their source-owned grid/visibility selection and are host-batched with other world cards.
+- Selected and tracked world cards are elements, not canvas paint: the host solves each card's rectangle and paints its leader, and `WorldOverlayCards` (scene chrome, `gev-world-overlay-cards` store) draws the plate and text at that rectangle, positioned by a transform written each painted frame. Ambient detail cards, labels, tracks, thumbnails and tactical cards stay on the canvas. Detail and selected cards carry no accent bar on their left edge, and an annotation callout is outlined in its mark's colour instead of carrying one; detection callouts keep their tier bar. `?overlayCards=all` also draws ambient detail cards as elements and `?overlayCards=off` paints every card on the canvas; a composition without the presenter paints every card on the canvas. Element cards were compared with canvas cards only under software rendering.
 - Space Mission ascent replay uses the compact rocket/thrust overlay only through orbit insertion. Once the replay enters its orbit phase, that vehicle glyph is replaced by a fixed-size cyan dot following the same orbit path and callout.
 - While a subject is selected, an inner keyhole compass rotates against camera heading and up to three cyan shafted bearing arrows lock to its single faint tick-marked rim, with their labels inset just inside the circle. Labels explicitly separate the geographic bearing (`BRG`) from the contact's reported course (`CRS`) so the pointer direction is not confused with aircraft heading. They point toward the nearest observed/mapped examples; each cohort displays up to ten examples while retaining the complete locally loaded in-range cohort for navigation, with three visible at a time and a ten-second page rotation shared by the panel and arrows. This distinct neutral-context color avoids implying that all context indicators are military-flight symbols. `PREVIOUS`, `FOCUS`, and `NEXT` controls navigate selection history or the next nearby cohort example through the existing tracker. NEXT uses a cycle-scoped visited set and starts a deterministic new walk after exhausting the current candidates instead of re-admitting the nearest visited contact.
 - Awareness `BRG` and `CRS` labels wrap after rounding to whole degrees, so a direction of 359.5° displays as `000°` rather than `360°`.

docs/VUE-MIGRATION.md

@@ -274,7 +274,14 @@ a feature supplying only its accent.
    the application shell publishes to the `gev-world-overlay-actions` store
    and answers with `activateWorldOverlayAction()`; the module needs no Vue
    for the portable transit entry, and its card and detection canvases stay
-   painting surfaces it draws on, like the Cesium canvas), the Global
+   painting surfaces it draws on, like the Cesium canvas), the selected and
+   tracked map cards (`WorldOverlayCards` in the scene chrome draws them as
+   elements from the list the world overlay presents through
+   `subscribeWorldOverlayCards()`, which the application shell publishes to
+   the `gev-world-overlay-cards` store; the overlay still solves each card's
+   place and paints its leader, and writes every frame's positions straight
+   to the elements, so a camera move re-renders nothing; without a presenter
+   the overlay paints these cards on its canvas), the Global
    Context compass and contact bearings (`AwarenessDirection` teleports into
    the globe container what the awareness layer presents through
    `subscribeDirectionOverlay()`, which the application shell publishes to