fix: Resolve clippy and rustdoc warnings

- Use contains_key instead of get().is_none()
- Simplify int comparison (total_len < max_len)
- Allow clippy::too_many_arguments for build_job_item
- Allow clippy::needless_range_loop for chain position marking
- Escape brackets in doc comment to fix rustdoc link warning

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: jayhesselberth

crates/charmer-monitor/src/components/job_list.rs

@@ -87,7 +87,7 @@ fn compute_dependencies(
         return relations;
     }
 
-    if state.jobs.get(selected_id).is_none() {
+    if !state.jobs.contains_key(selected_id) {
         return relations;
     }
 
@@ -188,6 +188,7 @@ fn compute_dependencies(
         let max_idx = chain_indices[chain_indices.len() - 1];
 
         // Mark positions for all rows in the range
+        #[allow(clippy::needless_range_loop)]
         for idx in min_idx..=max_idx {
             if relations[idx].0 != DepRelation::None {
                 // This is an actual chain member
@@ -324,6 +325,7 @@ impl JobList {
 }
 
 /// Build a single job list item with responsive columns.
+#[allow(clippy::too_many_arguments)]
 fn build_job_item(
     row_num: usize,
     list_index: usize,
@@ -438,7 +440,7 @@ fn build_job_item(
         for (i, value) in wildcards.iter().enumerate() {
             if i > 0 {
                 // Add pipe separator
-                if total_len + 1 <= max_len {
+                if total_len < max_len {
                     wildcard_spans.push(Span::styled("|", sep_style));
                     total_len += 1;
                 } else {

crates/charmer-monitor/src/components/view_tabs.rs

@@ -10,7 +10,7 @@ pub struct ViewTabs;
 
 impl ViewTabs {
     /// Generate a title Line with inline tab selection.
-    /// Returns something like: " [Jobs] Rules "
+    /// Returns something like: " \[Jobs\] Rules "
     pub fn title_line(view_mode: ViewMode) -> Line<'static> {
         let tabs = [("Jobs", ViewMode::Jobs), ("Rules", ViewMode::Rules)];