[F42] cargo doc --workspace --no-deps clean (0 warnings)

Fix all 33 rustdoc warnings across the workspace:

- Unresolved intra-doc links: rewrite [`name`] → either backtick text
  (when not actually a link) or fully-qualified `[Type::method]` /
  `[crate::module::name]` form. Affected: mxaccess-codec
  (asb_variant, item_control, metadata_query, observed_write_template,
  reference_handle, write_message), mxaccess-rpc (pdu), mxaccess-nmx
  (client), mxaccess-asb-nettcp (nmf), mxaccess-callback (exporter),
  mxaccess (asb_session, session, lib).
- Bracket-text being interpreted as link refs (e.g. `body[17]` →
  `` `body[17]` ``).
- Private-item references in public docs (CALLBACK_BROADCAST_CAPACITY,
  recover_connection_core, mxvalue_to_writevalue) reduced to
  backtick-text since they aren't part of the public API.

`RUSTDOCFLAGS="-D warnings" cargo doc --workspace --no-deps` now
exits clean. Workspace 759 tests pass; clippy clean.

Defers `#![warn(missing_docs)]` lint to a future pass — the cleanup
target is the broken-link warnings, which are signal; missing-docs
would surface hundreds of low-priority public-item gaps that are out
of scope for this F-number.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

rust/crates/mxaccess-codec/src/asb_variant.rs

@@ -154,7 +154,7 @@ impl AsbVariant {
         }
     }
 
-    /// Standalone encode: convenience wrapper around [`encode_into`].
+    /// Standalone encode: convenience wrapper around [`Self::encode_into`].
     pub fn encode(&self) -> Vec<u8> {
         let mut out = Vec::with_capacity(self.wire_len());
         self.encode_into(&mut out);

rust/crates/mxaccess-codec/src/item_control.rs

@@ -2,7 +2,7 @@
 //!
 //! Direct port of `src/MxNativeCodec/NmxItemControlMessage.cs`. The body
 //! carries an advise-supervisory or unadvise command together with a 16-byte
-//! item correlation GUID and a 14-byte projection of an [`MxReferenceHandle`]
+//! item correlation GUID and a 14-byte projection of an [`crate::reference_handle::MxReferenceHandle`]
 //! (handle bytes 6..20 — `object_id` through `attribute_index`).
 //!
 //! ## Wire layout
@@ -87,7 +87,7 @@ const PAYLOAD_LENGTH: usize = 18; // cs:28 — 7×u16 + u32 tail = 18 bytes
 pub const DEFAULT_TAIL: u32 = 3;
 
 /// Decoded NMX item-control body. The fields after `item_correlation_id`
-/// project bytes 6..20 of an [`MxReferenceHandle`] — see
+/// project bytes 6..20 of an [`crate::reference_handle::MxReferenceHandle`] — see
 /// `NmxItemControlMessage.cs:71-81, 134-141`.
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub struct NmxItemControlMessage {

rust/crates/mxaccess-codec/src/metadata_query.rs

@@ -1,7 +1,7 @@
 //! `NmxMetadataQueryMessage` — observed pre-advise metadata-query body.
 //!
 //! Direct port of `src/MxNativeCodec/NmxMetadataQueryMessage.cs`. The .NET
-//! reference exposes a single static helper, [`encode_observed_pre_advise`],
+//! reference exposes a single static helper, `encode_observed_pre_advise`,
 //! which returns a fixed observed body with a 16-byte item-correlation GUID
 //! patched in at offset `0x8a`.
 //!

rust/crates/mxaccess-codec/src/observed_write_template.rs

@@ -44,7 +44,7 @@
 //! `Encode` (`.cs:51-64`) writes:
 //!
 //! 1. The captured prefix (`_prefix`, raw bytes) — preserved verbatim.
-//! 2. The freshly-encoded value bytes from [`encode_value`].
+//! 2. The freshly-encoded value bytes from `encode_value_bytes`.
 //! 3. The captured suffix (`_suffixBeforeWriteIndex`) — preserved verbatim.
 //! 4. The fresh `writeIndex` as i32 LE in the trailing 4 bytes.
 //!
@@ -167,12 +167,12 @@ impl ObservedWriteBodyTemplate {
         }
     }
 
-    /// Captured opcode at body[0]. Mirrors `_prefix[0]`.
+    /// Captured opcode at `body[0]`. Mirrors `_prefix[0]`.
     pub fn command(&self) -> u8 {
         self.command
     }
 
-    /// Captured wire-kind byte at body[17]. Drawn from the captured prefix,
+    /// Captured wire-kind byte at `body[17]`. Drawn from the captured prefix,
     /// not from the runtime [`MxValueKind`] (which can disambiguate
     /// String vs DateTime past the encoder collapse).
     pub fn wire_kind(&self) -> u8 {

rust/crates/mxaccess-codec/src/reference_handle.rs

@@ -34,8 +34,9 @@ const CRC16_IBM_POLYNOMIAL: u16 = 0xa001;
 ///
 /// `object_signature` and `attribute_signature` are derived values. The Rust
 /// port keeps them private — the only constructor that produces a handle from
-/// names is [`from_names`]; the only mutators that update one signature are
-/// [`with_object_tag_name`] and [`with_attribute_name`], which both
+/// names is [`MxReferenceHandle::from_names`]; the only mutators that update
+/// one signature are [`MxReferenceHandle::with_object_tag_name`] and
+/// [`MxReferenceHandle::with_attribute_name`], which both
 /// recompute. This is a deliberate tightening over the .NET reference (which
 /// is a record with public init-only signature fields).
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Default)]
@@ -157,7 +158,7 @@ impl MxReferenceHandle {
     /// # Panics
     ///
     /// Panics if `destination.len() < 20`. Use a 20-byte slice or call
-    /// [`encode`] for a fresh buffer.
+    /// [`Self::encode`] for a fresh buffer.
     pub fn write_to(self, destination: &mut [u8]) {
         assert!(
             destination.len() >= Self::ENCODED_LEN,

rust/crates/mxaccess-codec/src/write_message.rs

@@ -72,8 +72,8 @@
 //! 28..    payload
 //! ```
 //!
-//! The encoder writes `count` (u16) at body[22] and `element_width` (u16) at
-//! body[24]. The decoder/subscription side reads `element_width` as `i32` at
+//! The encoder writes `count` (u16) at `body[22]` and `element_width` (u16) at
+//! `body[24]`. The decoder/subscription side reads `element_width` as `i32` at
 //! a different offset — that asymmetry is documented in the subscription
 //! message module, not here. Encoder element widths are 2/4/4/8 for
 //! Boolean/Int32/Float32/Float64 arrays; for variable arrays (String,