docs(37): add plan execution summaries for 37-01 and 37-02

.planning/phases/37-admin-global-item-management/37-01-SUMMARY.md

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+---
+plan: "37-01"
+phase: 37
+status: complete
+completed: "2026-04-19"
+---
+
+# Summary: 37-01 — Server — Admin Global Item Services & Routes
+
+## What Was Built
+
+Three new service functions added to `global-item.service.ts`, a new admin-items route file with four endpoints, and the router mounted in `admin.ts`. All protected by existing `requireAuth + requireAdmin` middleware.
+
+## Key Files
+
+### Created
+- `src/server/routes/admin-items.ts` — Hono router with GET /, GET /:id, PUT /:id, DELETE /:id
+
+### Modified
+- `src/server/services/global-item.service.ts` — Added `listGlobalItemsForAdmin`, `updateGlobalItemById`, `deleteGlobalItem`
+- `src/server/routes/admin.ts` — Import and mount `adminItemRoutes` at `/items`
+- `tests/services/global-item.service.test.ts` — 13 new tests across 3 describe blocks
+
+## Decisions & Deviations
+
+No deviations from the plan. All service functions implemented exactly as specified.
+
+## Test Results
+
+- `bun test tests/services/global-item.service.test.ts`: 32 pass, 0 fail
+- `bun run build`: exits 0
+
+## Self-Check: PASSED
+
+- [x] `listGlobalItemsForAdmin` — paginated with batched tag/ownerCount queries
+- [x] `updateGlobalItemById` — partial update in transaction, syncs tags when provided
+- [x] `deleteGlobalItem` — nullifies FK refs, removes tag associations before delete, returns false for missing items
+- [x] `src/server/routes/admin-items.ts` created with all 4 endpoints
+- [x] Router mounted at `/items` in admin.ts
+- [x] All 13 new service tests pass
+- [x] Build exits 0
+- [x] ADMN-02, ADMN-03, ADMN-04 served (server side)