feat: cashier/counter reports, service-order & remission flows, Rached migration utils

- Add "Mis cortes de caja" report for cashiers/counters with sales detail.
- Cash register history scoped to own cuts for non-admin roles; new /register/<id>/sales endpoint.
- Remove dashboard from cashier menu; add Reports to cashier/counter.
- Service orders: assign mechanic, budget field, invoice flag, counter/cashier can add items/remissions, convert to remission.
- Remission notes module (UI, CSS, courier, counter remissions).
- Customer hard-delete and vehicle/customer linkage in workshop.
- POS: always show search results, compact payment grid, credit validation, tier pricing (5%/10%), ticket with customer/folio.
- Inventory: CSV template with sku_secondary, alias import.
- Rached migration scripts and DB migrations.
- Version-bump cached JS/CSS query strings.

Excludes local Rached session tokens/captures (rached_*.json / rached_*.txt).

pos/migrations/runner.py

@@ -57,6 +57,19 @@ MIGRATIONS = {
     "v4.8": "v4.8_workshop_permissions.sql",
     "v4.9": "v4.9_workshop_customers_view.sql",
     "v4.10": "v4.10_fleet_permissions.sql",
+    "v4.11": "v4.11_clean_workshop_mechanic_permissions.sql",
+    "v4.12": "v4.12_service_order_soft_delete.sql",
+    "v4.13": "v4.13_fleet_vehicle_customer.sql",
+    "v4.14": "v4.14_service_order_delivery_cleanup.sql",
+    "v4.15": "v4.15_counter_remission.sql",
+    "v4.16": "v4.16_remission_courier.sql",
+    "v4.17": "v4.17_service_order_invoice.sql",
+    "v4.18": "v4.18_rached_workshop.sql",
+    "v4.19": "v4.19_counter_inventory_create.sql",
+    "v4.20": "v4.20_cashier_sell_permissions.sql",
+    "v4.21": "v4.21_cashier_workshop_permissions.sql",
+    "v4.22": "v4.22_cashier_invoicing_permissions.sql",
+    "v4.23": "v4.23_service_order_mechanic_name.sql",
 }
 
 
@@ -112,7 +125,10 @@ def apply_migration(db_name, version):
 def run_migrations():
     """Apply pending migrations to all tenants."""
     tenants = get_all_tenants()
-    sorted_versions = sorted(MIGRATIONS.keys())
+    def _version_key(v):
+        return tuple(int(x) for x in v.lstrip('v').split('.'))
+
+    sorted_versions = sorted(MIGRATIONS.keys(), key=_version_key)
 
     print(f"Found {len(tenants)} active tenants")
     print(f"Available migrations: {sorted_versions}")
@@ -120,8 +136,9 @@ def run_migrations():
     for tenant_id, db_name, name, current_version in tenants:
         print(f"\n[{name}] (db={db_name}, current={current_version})")
 
+        current_key = _version_key(current_version)
         for version in sorted_versions:
-            if version <= current_version:
+            if _version_key(version) <= current_key:
                 continue
 
             print(f"  Applying {version}...", end=" ")

pos/migrations/v4.14_service_order_delivery_cleanup.sql

@@ -0,0 +1,10 @@
+-- Normalize service order delivery options to only "pickup" (mostrador) and "delivery" (a domicilio).
+-- Convert legacy "courier" records to pickup and clear courier_id when delivery is not "delivery".
+
+UPDATE service_orders
+SET delivery_method = 'pickup'
+WHERE delivery_method = 'courier';
+
+UPDATE service_orders
+SET courier_id = NULL
+WHERE delivery_method IS NULL OR delivery_method != 'delivery';

pos/migrations/v4.15_counter_remission.sql

@@ -0,0 +1,18 @@
+-- v4.15: Counter remission note support
+-- Ensures employees with role 'counter' have the base permissions needed to
+-- generate remission notes from the POS.
+
+INSERT INTO employee_permissions (employee_id, permission)
+SELECT e.id, p.permission
+FROM employees e
+CROSS JOIN (
+    VALUES
+        ('pos.remission'),
+        ('pos.view'),
+        ('catalog.view'),
+        ('inventory.view'),
+        ('customers.view'),
+        ('customers.create')
+) AS p(permission)
+WHERE e.role = 'counter'
+ON CONFLICT (employee_id, permission) DO NOTHING;

pos/migrations/v4.16_remission_courier.sql

@@ -0,0 +1,18 @@
+-- v4.16: Add courier assignment to counter remission notes.
+
+ALTER TABLE sales
+    ADD COLUMN IF NOT EXISTS courier_id INTEGER;
+
+DO $$
+BEGIN
+    IF NOT EXISTS (
+        SELECT 1 FROM pg_constraint
+        WHERE conname = 'sales_courier_id_fkey'
+    ) THEN
+        ALTER TABLE sales
+            ADD CONSTRAINT sales_courier_id_fkey
+            FOREIGN KEY (courier_id) REFERENCES couriers(id);
+    END IF;
+END $$;
+
+CREATE INDEX IF NOT EXISTS idx_sales_courier_id ON sales(courier_id);

pos/migrations/v4.17_service_order_invoice.sql

@@ -0,0 +1,6 @@
+-- Service order invoice requirement flag
+ALTER TABLE service_orders
+    ADD COLUMN IF NOT EXISTS requires_invoice BOOLEAN DEFAULT FALSE;
+
+CREATE INDEX IF NOT EXISTS idx_service_orders_requires_invoice
+    ON service_orders(requires_invoice);

pos/migrations/v4.18_rached_workshop.sql

@@ -0,0 +1,32 @@
+-- v4.18 Rached workshop fields
+-- Extends service orders and items to match the Rached legacy workshop flow.
+-- Applied to all tenants.
+
+-- ═════════════════════════════════════════════════════════════════════════════
+-- 1. SERVICE_ORDERS: capture free-text customer/vehicle/workshop data
+-- ═════════════════════════════════════════════════════════════════════════════
+ALTER TABLE service_orders
+    ADD COLUMN IF NOT EXISTS workshop_name VARCHAR(200),
+    ADD COLUMN IF NOT EXISTS customer_address TEXT,
+    ADD COLUMN IF NOT EXISTS customer_phone VARCHAR(50),
+    ADD COLUMN IF NOT EXISTS vehicle_description VARCHAR(300);
+
+COMMENT ON COLUMN service_orders.workshop_name IS 'Free-text workshop/customer alias (Rached "Taller")';
+COMMENT ON COLUMN service_orders.customer_address IS 'Address captured or imported for the service order';
+COMMENT ON COLUMN service_orders.customer_phone IS 'Phone captured or imported for the service order';
+COMMENT ON COLUMN service_orders.vehicle_description IS 'Free-text vehicle description (alternative to fleet_vehicles)';
+
+CREATE INDEX IF NOT EXISTS idx_service_orders_workshop_name ON service_orders(workshop_name);
+CREATE INDEX IF NOT EXISTS idx_service_orders_vehicle_description ON service_orders(vehicle_description);
+
+-- ═════════════════════════════════════════════════════════════════════════════
+-- 2. SERVICE_ORDER_ITEMS: mechanic per item + explicit observations
+-- ═════════════════════════════════════════════════════════════════════════════
+ALTER TABLE service_order_items
+    ADD COLUMN IF NOT EXISTS mechanic_id INTEGER REFERENCES employees(id),
+    ADD COLUMN IF NOT EXISTS observations TEXT;
+
+COMMENT ON COLUMN service_order_items.mechanic_id IS 'Mechanic assigned to this specific line item';
+COMMENT ON COLUMN service_order_items.observations IS 'Line-item observations (Rached detail notes)';
+
+CREATE INDEX IF NOT EXISTS idx_service_order_items_mechanic_id ON service_order_items(mechanic_id);

pos/migrations/v4.19_counter_inventory_create.sql

@@ -0,0 +1,11 @@
+-- v4.19 — Grant inventory.create permission to existing counter employees
+-- so they can create items and record purchase entries.
+INSERT INTO employee_permissions (employee_id, permission)
+SELECT e.id, 'inventory.create'
+FROM employees e
+WHERE e.role = 'counter'
+  AND e.is_active = true
+  AND NOT EXISTS (
+      SELECT 1 FROM employee_permissions ep
+      WHERE ep.employee_id = e.id AND ep.permission = 'inventory.create'
+  );

pos/migrations/v4.20_cashier_sell_permissions.sql

@@ -0,0 +1,18 @@
+-- v4.20 — Ensure existing cashier employees can sell and view quotations.
+-- The cashier default set already includes these permissions, but employees
+-- created before the fix may be missing them.
+INSERT INTO employee_permissions (employee_id, permission)
+SELECT e.id, p.perm
+FROM employees e
+CROSS JOIN (VALUES
+    ('pos.sell'),
+    ('pos.discount'),
+    ('pos.cancel'),
+    ('pos.view')
+) AS p(perm)
+WHERE e.role = 'cashier'
+  AND e.is_active = true
+  AND NOT EXISTS (
+      SELECT 1 FROM employee_permissions ep
+      WHERE ep.employee_id = e.id AND ep.permission = p.perm
+  );

pos/migrations/v4.21_cashier_workshop_permissions.sql

@@ -0,0 +1,15 @@
+-- v4.21 — Allow existing cashier employees to create and edit service orders.
+INSERT INTO employee_permissions (employee_id, permission)
+SELECT e.id, p.perm
+FROM employees e
+CROSS JOIN (VALUES
+    ('workshop.view'),
+    ('workshop.edit'),
+    ('workshop.add_items')
+) AS p(perm)
+WHERE e.role = 'cashier'
+  AND e.is_active = true
+  AND NOT EXISTS (
+      SELECT 1 FROM employee_permissions ep
+      WHERE ep.employee_id = e.id AND ep.permission = p.perm
+  );

pos/migrations/v4.22_cashier_invoicing_permissions.sql

@@ -0,0 +1,15 @@
+-- v4.22 -- Enable invoicing for existing cashier employees.
+INSERT INTO employee_permissions (employee_id, permission)
+SELECT e.id, p.perm
+FROM employees e
+CROSS JOIN (VALUES
+    ('invoicing.view'),
+    ('invoicing.create'),
+    ('invoicing.cancel')
+) AS p(perm)
+WHERE e.role = 'cashier'
+  AND e.is_active = true
+  AND NOT EXISTS (
+      SELECT 1 FROM employee_permissions ep
+      WHERE ep.employee_id = e.id AND ep.permission = p.perm
+  );

pos/migrations/v4.23_service_order_mechanic_name.sql

@@ -0,0 +1,2 @@
+-- v4.23 -- Add free-text mechanic name for service orders.
+ALTER TABLE service_orders ADD COLUMN IF NOT EXISTS mechanic_name TEXT;