Add PCP architecture docs and TGU ops updates

Capture current PCP architecture notes, service-map prototypes, TGU operations UI/map work, local configuration updates, database helper scripts, and request/sample JSON artifacts.

services/pcp-tgu-ops-ui/src/features/tgu-map-2d/tgu2DMapInterval.ts

@@ -0,0 +1,29 @@
+import type { TguPlanUi, TimelineRange } from "../../model/timelineTypes";
+
+export const MAX_TGU_2D_MAP_INTERVAL_MS = 7 * 24 * 60 * 60 * 1000;
+
+export const TGU_2D_MAP_INTERVAL_WARNING =
+  "Интервал карты больше 7 суток. Для тяжёлых canvas-слоёв выберите меньший интервал или конкретный план.";
+
+export type Tgu2DMapIntervalState = {
+  range: TimelineRange;
+  tooLarge: boolean;
+};
+
+export function getTgu2DMapIntervalState(range: TimelineRange, selectedPlan?: TguPlanUi): Tgu2DMapIntervalState {
+  if (selectedPlan) {
+    return {
+      range: {
+        fromMs: selectedPlan.startMs,
+        toMs: selectedPlan.endMs
+      },
+      tooLarge: false
+    };
+  }
+
+  return {
+    range,
+    tooLarge: range.toMs - range.fromMs > MAX_TGU_2D_MAP_INTERVAL_MS
+  };
+}
+