Add Create Inventory form for properties and tax lots

[nllong]

Summary

Ports the legacy AngularJS "Create Inventory" form (create a Property or Tax Lot, optionally linking a related record) into a standalone InventoryCreateComponent at /{properties|taxlots}/create. Frontend-only — it calls the backend form_create endpoints that already exist in SEED-platform/seed.

Changes

• InventoryService.createInventory() — POST /api/v3/${type}/form_create/ with organization_id + optional related_view_id; centralized ErrorService handling. New InventoryFormCreateState/Data + FormCreateResponse types.
• InventoryCreateComponent (standalone) — access level / level instance / cycle selectors; a column-rows table with Material autocomplete over all columns; All Canonical Fields / All Extra Data Fields / Reset / Add Column; column list profile select; live validation (cycle + ALI required, no duplicate display names, ≥1 matching-criteria value per present table); unknown typed names become extra_data string columns.
• Save flow — confirm dialog, then POST primary and (if the related record has data) POST the related with related_view_id. Property lot_number is linked to taxlot jurisdiction_tax_lot_id.
• Route + nav — create route registered before :id; "Create Property" and "Create Tax Lot" navigation entries.
• i18n — all user-facing strings go through Transloco; new keys added to public/i18n/en_US.json.

Design note

The legacy post-save "success modal that offers to view the record" is replaced with a success snackbar + automatic navigation to /{type}/{view_id} (idiomatic SPA). The pre-save confirm dialog is kept. A null view_id (duplicate/merge) shows an info snackbar and does not navigate.

Backend dependency

Requires the form_create endpoints from SEED-platform/seed#4918 (branch 4846-create-property-form). To test, run a backend on that branch and point the dev proxy at it via SEED_HOST in .env.

Screenshots

Create Property — overview (validation banner clears once a matching-criteria value is present):

Pre-save confirm dialog:

Linking a related Tax Lot in the same form (adds a TaxLot-typed row, matching criteria auto-checked):

Success snackbar + automatic navigation to the new record's detail page:

Create Tax Lot — same form shape, populated:

Verification

pnpm lint (eslint + prettier + stylelint) and pnpm build pass.

Live-tested both forms end-to-end with Playwright against a real backend (branch 4846-create-property-form) with seeded data:

• Created a Property (canonical + extra fields, "All Canonical Fields"/"All Extra Data Fields" toggles) — 0 console errors.
• Created a Property linked to a pre-existing Tax Lot via a TaxLot-typed row in the same table — confirmed the backend paired them (TaxLotProperty row created) and matching-criteria checkboxes update live as fields are added.
• Created a Tax Lot — 0 console errors.
• Re-submitted an identical Tax Lot — correctly detected as a duplicate (204 with null view_id), stayed on the page instead of navigating, per the documented no-op behavior.
• No Playwright test failures / unexpected console errors across all of the above.