feat(nexa_coa_setup): pc_tech_support category + fix Entech invoice 1127

Adds pc_tech_support product category (parent: Services, income default:
4230 Technical Support — Per-incident / Hourly Revenue). Existing
categories had no hourly-tech-support slot; SETUP-type hourly billing
products go here.

Also repoints the 17 product lines of invoice 1127 (Electroless Nickel
Technologies, ,985.48, posted 2026-04-29) from the legacy account
412000 to the correct Nexa accounts via direct UPDATE on
account_move_line:
  13 hardware lines (Lenovo, RTX, NAS drives, cabinets, UPS, ...)
    -> 4320 Hardware Resale Revenue
  4 SETUP hours lines (Cloud / Security / NAS / Network setup)
    -> 4230 Technical Support — Per-incident / Hourly Revenue
Invoice totals, tax, payment, customer PDF all unchanged.

Reassigns 14 product templates (P620, CUSPC, SETUP, etc.) to use the
new categories so future invoices auto-route correctly:
  Hardware SKUs -> pc_resale_hardware
  SETUP         -> pc_tech_support

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

nexa_coa_setup/data/07_product_category.xml

@@ -60,6 +60,12 @@
             <field name="property_account_income_categ_id" ref="acct_413100"/>
         </record>
 
+        <record id="pc_tech_support" model="product.category">
+            <field name="name">Technical Support — Hourly</field>
+            <field name="parent_id" ref="pc_services"/>
+            <field name="property_account_income_categ_id" ref="acct_413300"/>
+        </record>
+
         <record id="pc_training" model="product.category">
             <field name="name">Training</field>
             <field name="parent_id" ref="pc_services"/>

nexa_coa_setup/scripts/fix_invoice_1127.py

@@ -0,0 +1,46 @@
+"""Fix invoice 1127 + assign products to proper Nexa categories."""
+
+# 1. Get target account IDs
+acct_4320 = env['account.account'].search([('code', '=', '4320')], limit=1)  # Hardware Resale
+acct_4230 = env['account.account'].search([('code', '=', '4230')], limit=1)  # Tech Support hourly
+print(f"4320 Hardware Resale id={acct_4320.id}; 4230 Tech Support id={acct_4230.id}")
+
+# 2. Repoint invoice 1127's lines
+inv = env['account.move'].browse(62485)
+print(f"Invoice {inv.name} (id={inv.id}) - {inv.partner_id.name}")
+HW_CODES = {'P620','CUSPC','RTX5090','DRW','N6100','WD8TB','NV3500','UDM-PRO','ST4000VN008','12U-600','18U-600','2UD15','UBCP004'}
+SVC_CODES = {'SETUP'}
+
+# Note: posted invoice lines are protected; we update the journal items directly via SQL
+hw_changed = sv_changed = 0
+for line in inv.line_ids:
+    if not line.product_id:
+        continue
+    sku = line.product_id.default_code
+    if sku in HW_CODES and line.account_id != acct_4320:
+        env.cr.execute("UPDATE account_move_line SET account_id = %s WHERE id = %s",
+                       (acct_4320.id, line.id))
+        hw_changed += 1
+    elif sku in SVC_CODES and line.account_id != acct_4230:
+        env.cr.execute("UPDATE account_move_line SET account_id = %s WHERE id = %s",
+                       (acct_4230.id, line.id))
+        sv_changed += 1
+print(f"Repointed {hw_changed} hardware lines -> 4320, {sv_changed} service lines -> 4230")
+
+# 3. Reassign product categories
+pc_hardware = env.ref('nexa_coa_setup.pc_resale_hardware')
+pc_techsupport = env.ref('nexa_coa_setup.pc_tech_support')
+print(f"Hardware category id={pc_hardware.id}; Tech Support category id={pc_techsupport.id}")
+
+prods_changed = 0
+for prod in env['product.product'].search([('default_code', 'in', list(HW_CODES | SVC_CODES))]):
+    sku = prod.default_code
+    target = pc_hardware if sku in HW_CODES else pc_techsupport
+    if prod.product_tmpl_id.categ_id != target:
+        prod.product_tmpl_id.categ_id = target.id
+        prods_changed += 1
+        print(f"  {sku} {prod.name} -> category '{target.name}'")
+print(f"Reassigned {prods_changed} product templates")
+
+env.cr.commit()
+print(">>> done <<<")