feat: laundry-list polish pass

Seven bundled improvements:
- PartModel combobox on Add Part + Log Repair (known MPN auto-fills;
  unknown reveals manufacturer picker for catalog upsert).
- Host lifecycle: state (DEPLOYED/DEGRADED/TESTING) and stack
  (PRODUCTION/VETTING) fields, driven by external clients via the API.
- Locations page redesigned as a 2-pane tree + bin grid with breadcrumb.
- PENDING_REPAIR custody state: tech takes a SPARE into custody for a
  future swap; resolves to DEPLOYED via Repair or back to SPARE via a
  bin-required drop-off.
- Move Category from Part to PartModel; seed common categories
  (GPU/RAM/SSD/HDD/NIC/CPU/PSU/MOBO). Parts table gets a Category
  column and filter sourced from the model.
- Fix Deployed Value 100x bug on the Dashboard (price is stored as
  dollars, not cents).
- PartModels table shows "No" instead of "--" when destroyOnFail=false.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

apps/web/src/lib/api/custody.ts

@@ -11,3 +11,8 @@ export async function dropOff(partId: string, input: DropOffRequest): Promise<Pa
   const res = await api.post<Part>(`/custody/${partId}/drop-off`, input);
   return res.data;
 }
+
+export async function takeForRepair(partId: string): Promise<Part> {
+  const res = await api.post<Part>(`/custody/${partId}/take-for-repair`);
+  return res.data;
+}

apps/web/src/lib/api/hosts.ts

@@ -7,6 +7,8 @@ export type HostListFilters = {
   page?: number;
   pageSize?: number;
   q?: string;
+  state?: string;
+  stack?: string;
 };
 
 export function listHosts(filters: HostListFilters = {}) {

apps/web/src/lib/api/part-models.ts

@@ -10,6 +10,7 @@ export type PartModelListFilters = {
   page?: number;
   pageSize?: number;
   manufacturerId?: string;
+  categoryId?: string;
   q?: string;
   eolBefore?: string;
 };

apps/web/src/lib/api/types.ts

@@ -1,4 +1,11 @@
-import type { FmStatus, PartEventType, PartState, Role } from '@vector/shared';
+import type {
+  FmStatus,
+  HostState,
+  HostStack,
+  PartEventType,
+  PartState,
+  Role,
+} from '@vector/shared';
 
 // Shapes mirror Prisma rows the API returns (dates serialized as ISO strings).
 // Keep these in sync with apps/api/src/services responses.
@@ -14,12 +21,14 @@ export interface PartModel {
   id: string;
   manufacturerId: string;
   mpn: string;
+  categoryId: string | null;
   eolDate: string | null;
   destroyOnFail: boolean;
   notes: string | null;
   createdAt: string;
   updatedAt: string;
   manufacturer?: Manufacturer;
+  category?: Category | null;
   _count?: { parts: number };
 }
 
@@ -59,7 +68,6 @@ export interface Part {
   price: number | null;
   state: PartState;
   binId: string | null;
-  categoryId: string | null;
   hostId: string | null;
   custodianId: string | null;
   notes: string | null;
@@ -99,6 +107,8 @@ export interface Host {
   name: string;
   location: string | null;
   notes: string | null;
+  state: HostState;
+  stack: HostStack;
   createdAt: string;
   updatedAt: string;
 }