feat: add org catalog item flow for inventory

[GitAddRemote]

Summary

• add the org inventory catalog add flow in the inventory UI with org-mode permission gating
• handle duplicate org item conflicts with backend 409 detection and frontend merge/update recovery
• include the supporting inventory filter and inline-row updates used by this cleaned issue 55 branch

Validation

• pnpm --filter frontend typecheck
• pnpm --filter backend test -- org-inventory.service.spec.ts

Notes

• this PR is the cleaned issue 55 branch and intentionally excludes the out-of-scope UEX orbit/location sync work that had been mixed into the older branch

Closes #55

[Copilot]

Pull request overview

Adds an organization-mode “catalog add → org inventory” flow to the Inventory UI with permission gating, and introduces backend duplicate detection (409) for org inventory creates, plus several UX improvements to inline editing and filtering.

Changes:

• Frontend: org-mode UI state + permission-gated “Add org item” flow with 409 conflict handling and inline editor focus/UX updates.
• Backend: org inventory create now detects duplicates and returns 409; org inventory list endpoint query parsing updated; repository adds findExistingItem.
• Supporting refactors: memoized location filtering, inline row memoization, and filter panel disabling during refresh.

Reviewed changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
frontend/src/services/permissions.service.ts	Adds frontend service + constants for fetching org permissions.
frontend/src/pages/Inventory.tsx	Implements org-mode add flow, permission gating, conflict handling, session persistence, and inline editor UX changes.
frontend/src/hooks/useMemoizedLocations.ts	Updates location filtering hook to return results only when active.
frontend/src/components/inventory/InventoryInlineRow.tsx	Refactors inline editor interactions (click-to-edit), adds memoization, and updates location selection behavior.
frontend/src/components/inventory/InventoryFiltersPanel.tsx	Adds disabled-state support and configurable add-button label.
backend/src/modules/org-inventory/org-inventory.service.ts	Adds pre-create duplicate detection and throws 409 Conflict.
backend/src/modules/org-inventory/org-inventory.service.spec.ts	Adds unit test coverage for the new 409 conflict behavior.
backend/src/modules/org-inventory/org-inventory.repository.ts	Adds findExistingItem helper and adjusts sort-column mapping.
backend/src/modules/org-inventory/org-inventory.controller.ts	Changes org inventory list query handling (manual parsing) and documents 409 response for create.

Comments suppressed due to low confidence (1)

frontend/src/pages/Inventory.tsx:1758

• renderInlineRow passes inlineDraft={inlineDrafts[item.id] ?? { ... }} which creates a new object on every render for rows without an explicit draft. Since InventoryInlineRow is now memoized with reference equality on inlineDraft, this defeats memoization and can cause unnecessary re-renders. Consider memoizing the fallback draft per-item (or compare draft fields instead of object identity in areEqual).

    const rowKey = item.id.toString();
    const draft = inlineDrafts[item.id] ?? {
      locationId: Number(item.locationId) || '',
      quantity: Number(item.quantity) || 0,
    };

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull request overview

Copilot reviewed 11 out of 11 changed files in this pull request and generated 3 comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull request overview

Copilot reviewed 11 out of 11 changed files in this pull request and generated 4 comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull request overview

Copilot reviewed 11 out of 11 changed files in this pull request and generated 3 comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull request overview

Copilot reviewed 11 out of 11 changed files in this pull request and generated 2 comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull request overview

Copilot reviewed 11 out of 11 changed files in this pull request and generated no new comments.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.