Refine viewer ship rail layout

SESSION.md

@@ -49,19 +49,24 @@ The viewer currently supports:
     - structures
     - celestials
 - `WASD` panning on the `XZ` plane
-- middle-mouse orbit camera
+- middle-mouse tactical orbit camera
 - smooth wheel zoom across local, system, and universe scales
 - layered system presentation
   - one active local system with detailed content
   - non-local systems projected as distant shell markers
 - procedurally animated planets and moons from orbital metadata
 - ringed planets, binary star presentation, and richer resource visuals
-- follow-camera behavior for selected ships
+- explicit camera modes
+  - tactical free-move / orbit camera
+  - `camera-follow` third-person trailing camera for ships
 - dedicated `System` and `Focus` panels on the right HUD
 - hover labels for projected system markers
 - a bottom ship list with horizontally scrolling ship cards
-  - card click selects and follows the ship
+  - card click selects the ship
+  - card double-click selects, focuses, and enables `camera-follow`
+  - cards now span the full screen width as a compact bottom rail
   - cards show ship name, class, fuel, energy, state, and order
+  - cards include a compact history icon button under the ship-class tag
 - multiple floating history windows for debugging
   - openable from ship cards
   - independently movable and resizable
@@ -159,6 +164,8 @@ The runtime model still follows the intended layered control architecture:
 - added viewer-side interpolation / short extrapolation for movement
 - added a plain-text network statistics readout
 - reworked the camera with smoother zoom, orbit, panning, and marquee selection
+- split viewer camera behavior into tactical and `camera-follow` modes
+- added ship-card double-click to focus and enter follow mode
 - cleaned up several viewer HUD elements and removed redundant panel content
 - expanded the backend world into a large procedural galaxy with elevated vertical variance
 - added deterministic orbital metadata for planets and client-side orbital animation in the viewer
@@ -204,7 +211,7 @@ The runtime model still follows the intended layered control architecture:
   - no command submission UI yet
 - local / projected / galaxy presentation is now workable but still needs tuning
   - shell marker art direction and scaling still need polish
-  - local camera feel still needs iteration
+  - tactical/follow camera tuning still needs iteration
   - projected-system composition is still a viewer illusion, not a full multi-layer renderer
 - the galaxy is much larger now, so viewer performance and visual density need active tuning
 - moon rendering is procedural from counts, not authored moon-by-moon data
@@ -216,7 +223,6 @@ The runtime model still follows the intended layered control architecture:
 - constructor logic only builds from station-local inventory
   - it does not yet fetch module materials from other stations or ships
 - station installed modules and active construction are not yet exposed in the viewer contract
-- some viewer follow-camera code is currently broken by a pre-existing missing `followedShipId` property
 - piracy and faction growth are still functional rather than strategically deep
 - no persistence for saves, seeds, or reconnect state