feat: add reserved turns management for generals and nations; enhance command selection UI

app/game-api/src/router/turns/index.ts

@@ -6,6 +6,8 @@ import { buildTurnCommandTable } from '../../turns/commandTable.js';
 import {
     MAX_GENERAL_TURNS,
     MAX_NATION_TURNS,
+    listGeneralTurns,
+    listNationTurns,
     setGeneralTurn,
     setNationTurn,
     shiftGeneralTurns,
@@ -76,6 +78,56 @@ export const turnsRouter = router({
             });
         }),
     reserved: router({
+        getGeneral: authedProcedure
+            .input(
+                z.object({
+                    generalId: z.number().int().positive(),
+                })
+            )
+            .query(async ({ ctx, input }) => {
+                const general = await ctx.db.general.findUnique({
+                    where: { id: input.generalId },
+                });
+                if (!general) {
+                    throw new TRPCError({
+                        code: 'NOT_FOUND',
+                        message: 'General not found.',
+                    });
+                }
+
+                return listGeneralTurns(ctx.db, input.generalId);
+            }),
+        getNation: authedProcedure
+            .input(
+                z.object({
+                    generalId: z.number().int().positive(),
+                })
+            )
+            .query(async ({ ctx, input }) => {
+                const general = await ctx.db.general.findUnique({
+                    where: { id: input.generalId },
+                });
+                if (!general) {
+                    throw new TRPCError({
+                        code: 'NOT_FOUND',
+                        message: 'General not found.',
+                    });
+                }
+                if (general.nationId <= 0) {
+                    throw new TRPCError({
+                        code: 'PRECONDITION_FAILED',
+                        message: 'General is not part of a nation.',
+                    });
+                }
+                if (general.officerLevel < 5) {
+                    throw new TRPCError({
+                        code: 'FORBIDDEN',
+                        message: 'General is not an officer.',
+                    });
+                }
+
+                return listNationTurns(ctx.db, general.nationId, general.officerLevel);
+            }),
         setGeneral: authedProcedure
             .input(
                 z.object({