feat(12-04): wire syncOrders + syncCompanyMatches into fullSync

- syncCompanyMatches() delegates to matchPax8Companies() (Plan 03),
  shaping its result into the standard Pax8EntitySyncResult
- fullSync() now pushes ordersResult then matchResult after products,
  so pax8_companies is fully populated before matching runs
- Both steps roll up into the existing success/status/totals reducer
  and sync_history record unchanged

lib/services/pax8-sync-service.ts

@@ -12,6 +12,7 @@
 import postgresClient from './postgres-client';
 import { Pax8Client } from './pax8-client';
 import { getPax8Client } from './pax8-factory';
+import { matchPax8Companies } from './pax8-company-matcher';
 import type {
   Pax8Company,
   Pax8Subscription,
@@ -94,6 +95,14 @@ export class Pax8SyncService {
       const productsResult = await this.syncProducts(referencedProductIds);
       entities.push(productsResult);
 
+      const ordersResult = await this.syncOrders();
+      entities.push(ordersResult);
+
+      // Matching runs after companies + orders so pax8_companies is fully
+      // populated first (PAX8-10, PAX8-11).
+      const matchResult = await this.syncCompanyMatches();
+      entities.push(matchResult);
+
       const completedAt = new Date();
       const success = entities.every(e => e.success);
       const status: 'completed' | 'failed' = success ? 'completed' : 'failed';
@@ -500,6 +509,41 @@ export class Pax8SyncService {
     }
   }
 
+  /**
+   * PAX8 <-> Autotask company fuzzy-name matching (PAX8-10, PAX8-11).
+   * Delegates entirely to matchPax8Companies() (Plan 03) — this wrapper just
+   * shapes the result into the standard Pax8EntitySyncResult so it rolls up
+   * into fullSync()'s totals and sync_history the same way every other
+   * entity step does.
+   */
+  private async syncCompanyMatches(): Promise<Pax8EntitySyncResult> {
+    const start = Date.now();
+    try {
+      const result = await matchPax8Companies();
+      return {
+        entity: 'company_matches',
+        success: true,
+        upserted: result.autoLinked,
+        // Repurposed: not a soft-delete tombstone count — the number of
+        // pax8_companies rows flagged for manual review this run (ambiguous
+        // + no-candidate), surfaced through the same rollup field.
+        tombstoned: result.flaggedAmbiguous + result.flaggedNoCandidate,
+        durationMs: result.durationMs,
+      };
+    } catch (err) {
+      const msg = err instanceof Error ? err.message : String(err);
+      console.error(`[Pax8Sync] Company match failed:`, msg);
+      return {
+        entity: 'company_matches',
+        success: false,
+        upserted: 0,
+        tombstoned: 0,
+        durationMs: Date.now() - start,
+        error: msg,
+      };
+    }
+  }
+
   // ─── Helpers ────────────────────────────────────────────────────────────
 
   private async insertHistoryStarted(triggeredBy: string, startedAt: Date): Promise<void> {