feat(sprint-5/etapa-4): procesos por recurso + campo empresa en perfil

Feature A — Ver procesos asociados a un recurso:
- resource-repo.ts: getProcessCountsPerResource() (una query, N+1 evitado)
- resource-repo.ts: getProcessesForResource() (on-demand al expandir)
- ResourceCatalogPage: carga conteos en paralelo, columna "Procesos" con
  badge naranja clicable, fila expandida con links a /workspace/:id

Feature B — Campo empresa en perfil:
- 013_add_company_to_users.sql: ALTER TABLE users ADD COLUMN IF NOT EXISTS company text
- AuthUser: agrega company? opcional
- SupabaseAuthService: lee company y name de tabla users en onAuthStateChange
- AuthContext: agrega updateUser() para reflejar cambios sin recargar
- ProfileSheet.tsx: Sheet con nombre/empresa editables, email read-only
- AppHeader: muestra empresa en dropdown + item "Editar perfil"

528 tests Vitest verdes. Build limpio.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/persistence/supabase/resource-repo.ts

@@ -56,6 +56,48 @@ export const supabaseResourceRepo = {
     return (data ?? []).map((row) => fromRowWithCreator(row as Record<string, unknown>))
   },
 
+  // Devuelve un map resourceId → cantidad de procesos DISTINTOS que usan ese recurso.
+  // Una sola query para evitar N+1; agregación client-side con Set.
+  async getProcessCountsPerResource(): Promise<Record<string, number>> {
+    const { data, error } = await supabase
+      .from('activity_resource_assignments')
+      .select('resource_id, activity:activities!inner(process_id)')
+    if (error) throw error
+    if (!data) return {}
+
+    const processSets: Record<string, Set<string>> = {}
+    for (const row of data) {
+      const resourceId = row.resource_id as string
+      const processId = (row.activity as unknown as { process_id: string }).process_id
+      if (!processSets[resourceId]) processSets[resourceId] = new Set()
+      processSets[resourceId].add(processId)
+    }
+    return Object.fromEntries(
+      Object.entries(processSets).map(([k, v]) => [k, v.size])
+    )
+  },
+
+  // Devuelve los procesos distintos que usan el recurso (llamada on-demand al expandir fila).
+  async getProcessesForResource(resourceId: string): Promise<{ id: string; name: string }[]> {
+    const { data, error } = await supabase
+      .from('activity_resource_assignments')
+      .select('activity:activities!inner(process:processes!inner(id, name))')
+      .eq('resource_id', resourceId)
+    if (error) throw error
+    if (!data) return []
+
+    const seen = new Set<string>()
+    const result: { id: string; name: string }[] = []
+    for (const row of data) {
+      const process = (row.activity as unknown as { process: { id: string; name: string } }).process
+      if (!seen.has(process.id)) {
+        seen.add(process.id)
+        result.push({ id: process.id, name: process.name })
+      }
+    }
+    return result
+  },
+
   // No elimina si el recurso tiene asignaciones activas en activity_resource_assignments
   async delete(resourceId: string): Promise<void> {
     const { count, error: countError } = await supabase