fix(#2377): doc_markdown + too_many_lines clippy lints

- Backtick-quote `pull_request` in doc comments (4x doc_markdown)
- Add #[allow(clippy::too_many_lines)] to server::dispatch (101/100;
  +1 line from submit_kind fetched_sha param in 5dd0a36f)

hive-c0re/src/dashboard/webhook.rs

@@ -2,7 +2,7 @@
 //!
 //! - **`/webhook/knowledge`** — push events on `internal/knowledge` trigger a
 //!   `git pull` on the local clone so agents see up-to-date docs.
-//! - **`/webhook/config-pr`** — pull_request events on any `agent-configs/*`
+//! - **`/webhook/config-pr`** — `pull_request` events on any `agent-configs/*`
 //!   repo queue a [`hive_sh4re::ApprovalKind::MergeConfigPr`] approval row
 //!   so the operator can review + approve the merge from the dashboard.
 //!
@@ -77,7 +77,7 @@ pub(super) async fn post_webhook_knowledge(
 
 // ── config-PR webhook ──────────────────────────────────────────────────────────
 
-/// Minimal Forgejo pull_request-webhook payload.
+/// Minimal Forgejo `pull_request`-webhook payload.
 ///
 /// Forgejo fires this for actions: `opened`, `closed`, `reopened`,
 /// `synchronize`, `assigned`, `unassigned`, `label_updated`,
@@ -109,7 +109,7 @@ struct PrWebhookRepo {
     full_name: Option<String>,
 }
 
-/// POST `/webhook/config-pr` — Forgejo pull_request webhook for
+/// POST `/webhook/config-pr` — Forgejo `pull_request` webhook for
 /// `agent-configs/*` repos.
 ///
 /// On `opened` or `synchronize` for an `agent-configs/<agent>` PR: