milestone 11: systemd and docker packaging, operator and architecture docs, config and api reference, docs drift guards

src/platform/logging.zig

@@ -14,8 +14,9 @@
 //! need no `Io` because they read `std.Options.debug_io` (debug.zig:283), they
 //! are documented as recursive (debug.zig:263-270), and `Io/Threaded.zig`
 //! implements that recursion per OS thread (Threaded.zig:13787-13796). nxdns
-//! runs a `std.Io.Threaded` instance (cli.zig:793), so one task is one thread
-//! and the recursion holds. Taking it across the file writes as well keeps the
+//! runs on the `std.Io.Threaded` instance the stdlib start code constructs
+//! (start.zig:724, handed to `main` via `std.process.Init`), so one task is
+//! one thread and the recursion holds. Taking it across the file writes as well keeps the
 //! file path and the stderr fallback path from interleaving with each other,
 //! with `std.Progress`, or with a panic dump.
 //!