chore(core): fix build.rs + crate-doc drift left by the W7/W8 splits

- build.rs: drop the stale `rerun-if-changed=src/client.rs` (the file
  became client/ in W7; the path never fires).
- lib.rs: the crate doc's module list named 6 of ~19 modules — add the
  missing ones (config/error/stats/input/reject/reanchor/render_scale/
  audio/wol + the quic-gated control-plane group), without intra-doc
  links to feature-gated modules.
- quic/mod.rs: the module doc still described the deleted `msgs`
  module; list the actual post-split module set.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

crates/punktfunk-core/build.rs

@@ -10,7 +10,6 @@ fn main() {
     println!("cargo:rerun-if-changed=src/abi.rs");
     println!("cargo:rerun-if-changed=src/config.rs");
     println!("cargo:rerun-if-changed=src/input.rs");
-    println!("cargo:rerun-if-changed=src/client.rs");
     println!("cargo:rerun-if-changed=src/error.rs");
     println!("cargo:rerun-if-changed=cbindgen.toml");
 

crates/punktfunk-core/src/lib.rs

@@ -16,6 +16,17 @@
 //!   (recv → open → reorder → FEC recover → reassemble) state machines.
 //! - [`transport`] — pluggable packet I/O (in-process loopback for tests; UDP for real).
 //! - [`abi`] — the `extern "C"` surface and `cbindgen`-generated `punktfunk_core.h`.
+//! - [`config`] / [`error`] / [`stats`] — session configuration, the shared error/status
+//!   vocabulary, and the counters snapshot.
+//! - [`input`] — the wire input-event vocabulary (keyboard/mouse/touch, gamepad snapshots).
+//! - [`reject`] — typed application-close rejection codes · [`reanchor`] — the post-loss
+//!   freeze-until-reanchor client gate · [`render_scale`] — the shared render-scale setting ·
+//!   [`audio`] — Opus PCM decode for C-ABI embedders · [`wol`] — Wake-on-LAN.
+//! - `quic` (feature `quic`) — the punktfunk/1 control plane: handshake, typed control
+//!   messages, pairing (SPAKE2), the datagram plane codecs, and clock sync. With it come
+//!   `client` (the embeddable NativeClient worker), `abr` (the adaptive-bitrate
+//!   controller), and `clipboard` (the shared-clipboard transport task). `tls`
+//!   (feature `tls`) — the pinned-fingerprint certificate verifier.
 //!
 //! ## Threading contract
 //!

crates/punktfunk-core/src/quic/mod.rs

@@ -22,11 +22,14 @@
 //! reported back for persisting). The data plane adds AES-GCM on top.
 //! All integers little-endian; every message is `u16 length || payload`.
 //!
-//! Split by concern (networking-audit deferred plan §3 — a pure move): [`msgs`] the
+//! Split by concern (networking-audit deferred plan §3 — a pure move): `handshake` the
-//! handshake + typed control messages, [`pake`] the pairing SPAKE2, [`datagram`] the
+//! positional Hello/Welcome/Start codecs, `caps` the capability/codec-negotiation
-//! 0xC9–0xCF plane codecs, [`io`] framed stream IO, [`clock`] skew estimation + mid-stream
+//! vocabulary, `control` the typed control + clipboard messages, `pairing` the pairing
-//! re-sync, [`endpoint`] the quinn constructors. Every item is re-exported here, so all
+//! message codecs with [`pake`] the SPAKE2 itself, `datagram` the 0xC9–0xCF plane codecs,
-//! existing `crate::quic::X` paths compile unchanged.
+//! [`io`] framed stream IO, `clock` skew estimation + mid-stream re-sync, [`endpoint`] the
+//! quinn constructors, [`clipstream`] the per-transfer clipboard fetch streams. Every item
+//! is re-exported here, so all existing `crate::quic::X` paths compile unchanged; each
+//! module's tests sit at its own foot.
 
 /// Protocol magic + version, first bytes of the positional handshake (Hello/Welcome/Start).
 pub const MAGIC: &[u8; 4] = b"PKF1";