feat: complete release readiness work

- consolidate API ownership and remove dead vendor code

- add Stripe billing, learning paths, and public CV hardening

- add migration, recovery, security, audit, and browser gates

docs/jobs/company-management.md

@@ -1,6 +1,3 @@
-# companies
-
-TODO: Complete documentation.
 # Company Management
 
 ## Purpose
@@ -55,4 +52,4 @@ Possible:
 
 - Company research.
 - Reviews.
-- Hiring insights.
+- Hiring insights.