fix: clean error on OS-level write failures in config init and dispatch (v0.1.2)

- config init catches OSError (read-only dir, ENOSPC, gone cwd) alongside CommandError
  and prints a clean [x] line; the main dispatch catches the full OSError family instead
  of only FileNotFoundError (L13)
- document read_flag's fail-closed (non-dict -> not allowed) as a deliberate privilege-
  gate default (nit).

Signed-off-by: disqualifier <dev@disqualifier.me>

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "envelope_authorizer"
-version = "0.1.1"
+version = "0.1.2"
 description = "CLI key-authorization manager for envelope_crypto"
 requires-python = ">=3.10"
 dependencies = [