style: Apply cargo fmt and clippy fixes across codebase

Automated formatting and lint corrections from parallel agent work:

- cargo fmt: import reordering (alphabetical), line wrapping to respect
  max width, trailing comma normalization, destructuring alignment,
  function signature reformatting, match arm formatting
- clippy (pedantic): Range::contains() instead of manual comparisons,
  i64::from() instead of `as i64` casts, .clamp() instead of
  .max().min() chains, let-chain refactors (if-let with &&),
  #[allow(clippy::too_many_arguments)] and
  #[allow(clippy::field_reassign_with_default)] where warranted
- Removed trailing blank lines and extra whitespace

No behavioral changes. All existing tests pass unmodified.

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

src/cli/mod.rs

@@ -213,7 +213,12 @@ pub struct IssuesArgs {
     pub iid: Option<i64>,
 
     /// Maximum results
-    #[arg(short = 'n', long = "limit", default_value = "50", help_heading = "Output")]
+    #[arg(
+        short = 'n',
+        long = "limit",
+        default_value = "50",
+        help_heading = "Output"
+    )]
     pub limit: usize,
 
     /// Filter by state (opened, closed, all)
@@ -249,7 +254,11 @@ pub struct IssuesArgs {
     pub due_before: Option<String>,
 
     /// Show only issues with a due date
-    #[arg(long = "has-due", help_heading = "Filters", overrides_with = "no_has_due")]
+    #[arg(
+        long = "has-due",
+        help_heading = "Filters",
+        overrides_with = "no_has_due"
+    )]
     pub has_due: bool,
 
     #[arg(long = "no-has-due", hide = true, overrides_with = "has_due")]
@@ -267,7 +276,12 @@ pub struct IssuesArgs {
     pub no_asc: bool,
 
     /// Open first matching item in browser
-    #[arg(short = 'o', long, help_heading = "Actions", overrides_with = "no_open")]
+    #[arg(
+        short = 'o',
+        long,
+        help_heading = "Actions",
+        overrides_with = "no_open"
+    )]
     pub open: bool,
 
     #[arg(long = "no-open", hide = true, overrides_with = "open")]
@@ -281,7 +295,12 @@ pub struct MrsArgs {
     pub iid: Option<i64>,
 
     /// Maximum results
-    #[arg(short = 'n', long = "limit", default_value = "50", help_heading = "Output")]
+    #[arg(
+        short = 'n',
+        long = "limit",
+        default_value = "50",
+        help_heading = "Output"
+    )]
     pub limit: usize,
 
     /// Filter by state (opened, merged, closed, locked, all)
@@ -313,11 +332,21 @@ pub struct MrsArgs {
     pub since: Option<String>,
 
     /// Show only draft MRs
-    #[arg(short = 'd', long, conflicts_with = "no_draft", help_heading = "Filters")]
+    #[arg(
+        short = 'd',
+        long,
+        conflicts_with = "no_draft",
+        help_heading = "Filters"
+    )]
     pub draft: bool,
 
     /// Exclude draft MRs
-    #[arg(short = 'D', long = "no-draft", conflicts_with = "draft", help_heading = "Filters")]
+    #[arg(
+        short = 'D',
+        long = "no-draft",
+        conflicts_with = "draft",
+        help_heading = "Filters"
+    )]
     pub no_draft: bool,
 
     /// Filter by target branch
@@ -340,7 +369,12 @@ pub struct MrsArgs {
     pub no_asc: bool,
 
     /// Open first matching item in browser
-    #[arg(short = 'o', long, help_heading = "Actions", overrides_with = "no_open")]
+    #[arg(
+        short = 'o',
+        long,
+        help_heading = "Actions",
+        overrides_with = "no_open"
+    )]
     pub open: bool,
 
     #[arg(long = "no-open", hide = true, overrides_with = "open")]
@@ -427,7 +461,12 @@ pub struct SearchArgs {
     pub updated_after: Option<String>,
 
     /// Maximum results (default 20, max 100)
-    #[arg(short = 'n', long = "limit", default_value = "20", help_heading = "Output")]
+    #[arg(
+        short = 'n',
+        long = "limit",
+        default_value = "20",
+        help_heading = "Output"
+    )]
     pub limit: usize,
 
     /// Show ranking explanation per result