Fuse the standalone ship-class designer (Phases 17/18) into a sidebar calculator: live mass/speed/attack/defence/bombing results, a planet build-rate readout, single-target goal-seek, a modernization-cost mode, and auto reach circles on the map for the selected planet.
pkg/calc becomes the single source for the new math (no mirroring): extract BombingPower from the engine model and the per-turn ship-production loop from controller.ProduceShip into pkg/calc (engine now delegates), and add inverse goal-seek solvers in pkg/calc/solve.go. Thin-bridge the combat, planet-build, and solver functions through ui/core/calc + ui/wasm and rebuild core.wasm.
Remove the standalone designer view/route; the ship-classes table and the view/bottom menus open the calculator via a shared request store.
Docs: rewrite ui/PLAN.md Phase 30, adjust Phase 34 (realistic forecast + CAP/COL ownership), add ui/docs/calculator-ux.md, extend calc-bridge.md, fix navigation.md; remove ui/CALCULATOR.md.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The renderer-mount effect in `lib/active-view/map.svelte` reads
`mounted` to gate the runSerializedMount call, but the variable was
declared as a plain `let`, not `$state`. On the first navigation to
/map this is benign: the effect's first pass returns early (gameState
still hydrating, `report` null), and once `report` arrives the
effect re-fires — by which point `onMount` has already flipped
`mounted = true`.
On every subsequent return to /map the report is already loaded by
the long-lived gameState in the layout. The effect therefore makes
exactly one pass on the freshly-mounted component, gates on
`mounted === false` (the brand-new instance has not run `onMount`
yet), and never wakes up again because no tracked state changes
afterwards. Symptom: black canvas — fresh DOM, no mount-error
overlay, but Pixi never rebuilt the world on the new canvas.
Convert `mounted` to `$state(false)` so flipping it true inside
`onMount` triggers the effect's second pass, which now finds all
preconditions satisfied and proceeds to `runSerializedMount`. The
detailed lifecycle reasoning is preserved as a code comment so the
next reader can see why this one variable must be reactive.
Add tests/e2e/map-roundtrip.spec.ts: navigates /map → {report,
ship-class designer, science designer, mail} → /map for each
non-map view, then asserts the renderer republished primitives onto
the DEV `__galaxyDebug.getMapPrimitives()` surface. The pre-fix
build failed every variant; the patch lands all four green.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Ilia Denisov