Status updates (feature/test update and batch-update) now verify the
requested status against Roslyn audit classification. Mismatches
require --override "reason" to force. Overrides are logged to a new
status_overrides table and reviewable via 'override list' command.
Add Database.cs with SQLite connection management and helper methods
(Execute, ExecuteScalar, Query), Schema.cs for schema initialization,
and replace default Program.cs with System.CommandLine v3 CLI featuring
global --db/--schema options and an init command.
