fix(#3245): resolve broken intra-doc links in hive-c0re

Remove or fix broken documentation links that accumulate silently:
- container_view.rs: HiveEnv reference
- forge/mod.rs: READY_TIMEOUT and webhook handler links
- workers/knowledge.rs: webhook handler link
- job_queue/model.rs: Claim::deps and WireNode::data references
- stats/hive_stats.rs: read_skill_breakdown reference
- stores/audit_log.rs: global() reference
- workers/agent_sockets.rs: ambiguous agent_sockets::write reference
- coordinator.rs: systemd.services.<harness> formatting
- resource_limits.rs: ambiguous write/read references

Some broken links were to deleted functions/types; these are replaced
with prose descriptions. Others referenced items outside this crate or
were private; these are replaced with plain text references or qualified
paths as appropriate.

Fixes: #3245

hive-c0re/src/agent_config/resource_limits.rs

@@ -225,8 +225,8 @@ pub fn write(map: &BTreeMap<String, AgentLimits>) -> std::io::Result<()> {
 ///
 /// # Errors
 ///
-/// Propagates whatever [`write`] fails with. An unreadable or malformed
-/// existing file is *not* an error — [`read`] degrades to an empty map,
+/// Propagates whatever the `write` function fails with. An unreadable or malformed
+/// existing file is *not* an error — the `read` function degrades to an empty map,
 /// so this call rewrites the file from scratch.
 pub fn set_limits(name: &str, limits: &AgentLimits) -> std::io::Result<()> {
     let mut current = read();