Make billing catalog dynamic for all runtimes and bill optional service resources.

Derive admin tabs and addon rows from enums, and add Redis/RabbitMQ/ES CPU/RAM/disk to deploy cost using the app runtime unit rates.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/migrations/005_pricing_catalog_all_runtimes.sql

@@ -0,0 +1,24 @@
+-- Ensure pricing_rates rows exist for every AppRuntime enum value
+
+INSERT INTO pricing_rates (runtime, resource_type, hourly_price, monthly_price, yearly_price)
+SELECT r.runtime, t.resource_type, 0, 0, 0
+FROM (
+  VALUES
+    ('nodejs'),
+    ('laravel'),
+    ('wordpress'),
+    ('go'),
+    ('php'),
+    ('python'),
+    ('django'),
+    ('dotnet')
+) AS r(runtime)
+CROSS JOIN (
+  VALUES
+    ('base_fee'),
+    ('cpu_per_core'),
+    ('memory_per_gb'),
+    ('storage_per_gb'),
+    ('database_addon')
+) AS t(resource_type)
+ON CONFLICT (runtime, resource_type) DO NOTHING;