ui/phase-13: planet inspector — read-only

Plumbs the map → inspector pathway: a click on a planet selects it
through the new SelectionStore, the sidebar Inspector tab swaps
its empty-state copy for a per-kind read-only field set, and a
mobile-only bottom-sheet mirrors the same content over the map.
Field projection in api/game-state.ts now surfaces every documented
planet field.

ui/frontend/src/api/game-state.ts

@@ -1,9 +1,15 @@
 // Typed wrapper around `GalaxyClient.executeCommand("user.games.report",
 // ...)`. The signed-gRPC wire shape is the FlatBuffers
 // `report.GameReportRequest` for the request and `report.Report` for
-// the response (see `pkg/schema/fbs/report.fbs`). Phase 11 only
-// surfaces the planet subset of the response — full ship / fleet /
+// the response (see `pkg/schema/fbs/report.fbs`). Full ship / fleet /
 // science decoding lands in Phases 17-22.
+//
+// Phase 13 expanded the per-planet projection so the inspector can
+// render every documented field without a second round-trip. Each
+// planet field is optional: the FBS schema carries different field
+// sets for `LocalPlanet`, `OtherPlanet`, `UninhabitedPlanet`, and
+// `UnidentifiedPlanet`, and the wrapper preserves that nullability
+// instead of inventing zero values.
 
 import { Builder, ByteBuffer } from "flatbuffers";
 
@@ -37,6 +43,16 @@ export interface ReportPlanet {
 	owner: string | null;
 	size: number | null;
 	resources: number | null;
+	// Engine field naming carries history: `capital` ($) is the
+	// industry stockpile, `material` (M) is the materials stockpile.
+	// `pkg/model/report/planet.go` is the source of truth for these.
+	industryStockpile: number | null;
+	materialsStockpile: number | null;
+	industry: number | null;
+	population: number | null;
+	colonists: number | null;
+	production: string | null;
+	freeIndustry: number | null;
 }
 
 export interface GameReport {
@@ -85,6 +101,13 @@ function decodeReport(report: Report): GameReport {
 			owner: null,
 			size: p.size(),
 			resources: p.resources(),
+			industryStockpile: p.capital(),
+			materialsStockpile: p.material(),
+			industry: p.industry(),
+			population: p.population(),
+			colonists: p.colonists(),
+			production: p.production() ?? null,
+			freeIndustry: p.freeIndustry(),
 		});
 	}
 
@@ -100,6 +123,13 @@ function decodeReport(report: Report): GameReport {
 			owner: p.owner() ?? null,
 			size: p.size(),
 			resources: p.resources(),
+			industryStockpile: p.capital(),
+			materialsStockpile: p.material(),
+			industry: p.industry(),
+			population: p.population(),
+			colonists: p.colonists(),
+			production: p.production() ?? null,
+			freeIndustry: p.freeIndustry(),
 		});
 	}
 
@@ -115,6 +145,13 @@ function decodeReport(report: Report): GameReport {
 			owner: null,
 			size: p.size(),
 			resources: p.resources(),
+			industryStockpile: p.capital(),
+			materialsStockpile: p.material(),
+			industry: null,
+			population: null,
+			colonists: null,
+			production: null,
+			freeIndustry: null,
 		});
 	}
 
@@ -130,6 +167,13 @@ function decodeReport(report: Report): GameReport {
 			owner: null,
 			size: null,
 			resources: null,
+			industryStockpile: null,
+			materialsStockpile: null,
+			industry: null,
+			population: null,
+			colonists: null,
+			production: null,
+			freeIndustry: null,
 		});
 	}