Wire the app to the shared Supabase catalog (public catalog read integration)

Moves port/cable/category/device-template data from per-diagram embedded
storage to the global public/private catalog backed by Supabase, per
organized-ideas.md's "live reference, not snapshot" decision.

- domain/types.ts, project.ts, compatibility.ts, bom.ts: lookup functions
  now take an explicit Catalog parameter instead of deriving data from
  Project — Project is reduced to just diagram-scoped fields.
- New CatalogRepository/SupabaseCatalogRepository (mirrors the
  DiagramRepository pattern) and catalogStore.ts, replacing the
  catalog-related actions that used to live in projectStore.
- device_templates gets a plain-text manufacturer column for now (the
  normalized manufacturer catalog from organized-ideas.md §3 is its own
  future pass, not blocking this one).
- domain/library.ts is no longer imported by the app — it's now only the
  source scripts/generate-seed.mjs reads to produce supabase/seed.sql.
- Swept every UI call site via tsc -b until clean; oxlint clean; 23/23
  pgTAP RLS tests still passing after a `supabase db reset`.

src/domain/compatibility.ts

@@ -1,5 +1,5 @@
 import { acceptedFamilies, getPortType, hasBridgingCableType } from './project'
-import type { Connection, Device, PortType, Project } from './types'
+import type { Catalog, Connection, Device, PortType, Project } from './types'
 
 /**
  * Two ports connect if the sets of families they each accept (their own
@@ -37,6 +37,7 @@ export interface ConnectionValidation {
  */
 export function validateConnection(
   project: Project,
+  catalog: Catalog,
   candidate: ConnectionCandidate,
   existingConnections: Connection[] = project.connections,
 ): ConnectionValidation {
@@ -62,15 +63,15 @@ export function validateConnection(
     return { valid: false, reason: 'Cannot connect two output ports.' }
   }
 
-  const sourcePortType = getPortType(project, sourcePort.portTypeId)
-  const targetPortType = getPortType(project, targetPort.portTypeId)
+  const sourcePortType = getPortType(catalog, sourcePort.portTypeId)
+  const targetPortType = getPortType(catalog, targetPort.portTypeId)
   if (!sourcePortType || !targetPortType) {
     return { valid: false, reason: 'Unknown port type.' }
   }
   // Directly compatible port types, or bridgeable by a specific adapter
   // cable (different connectors on each end, e.g. XLR-to-TRS) even when the
   // port types themselves declare no general compatibility.
-  if (!portTypesCompatible(sourcePortType, targetPortType) && !hasBridgingCableType(project, sourcePortType, targetPortType)) {
+  if (!portTypesCompatible(sourcePortType, targetPortType) && !hasBridgingCableType(catalog, sourcePortType, targetPortType)) {
     return {
       valid: false,
       reason: `${sourcePortType.name} is not compatible with ${targetPortType.name}.`,