chore(fermata): set real repository URLs (git.g4b.org/dirigence)

- Cargo.toml: repository = https://git.g4b.org/dirigence/fermata
- README.standalone.md: upstream link points at git.g4b.org/dirigence/dirigent

Cargo.toml

@@ -5,8 +5,7 @@ edition = "2021"
 rust-version = "1.75"
 description = "Harness-agnostic policy gate for AI coding agents (.botignore + botignore.toml)"
 license = "MIT OR Apache-2.0"
-# TODO: replace with real URL before publish
-repository = "https://github.com/TODO/dirigent-fermata"
+repository = "https://git.g4b.org/dirigence/fermata"
 readme = "README.md"
 keywords = ["ai", "agents", "security", "policy", "gitignore"]
 categories = ["command-line-utilities", "development-tools"]