style(tui): apply rustfmt and clippy formatting across crate

Mechanical formatting pass to satisfy rustfmt line-width limits and
clippy pedantic/nursery lints. No behavioral changes.

Formatting (rustfmt line wrapping):
- action/sync.rs: multiline tuple destructure, function call args in tests
- state/sync.rs: if-let chain formatting, remove unnecessary Vec collect
- view/sync.rs: multiline array entries, format!(), vec! literals
- view/doctor.rs: multiline floor_char_boundary chain
- view/scope_picker.rs: multiline format!() with floor_char_boundary
- view/stats.rs: multiline render_stat_row call
- view/mod.rs: multiline assert!() in test
- app/update.rs: multiline enum variant destructure
- entity_cache.rs: multiline assert_eq!() with messages
- render_cache.rs: multiline retain() closure
- session.rs: multiline serde_json/File::create/parent() chains

Clippy:
- action/sync.rs: #[allow(clippy::too_many_arguments)] on test helper

Import/module ordering (alphabetical):
- state/mod.rs: move scope_picker mod + pub use to sorted position
- view/mod.rs: move scope_picker, stats, sync mod + use to sorted position
- view/scope_picker.rs: sort use imports (ScopeContext before ScopePickerState)

crates/lore-tui/src/view/doctor.rs

@@ -127,7 +127,9 @@ pub fn render_doctor(frame: &mut Frame<'_>, state: &DoctorState, area: Rect) {
         let detail = if check.detail.len() > max_detail {
             format!(
                 "{}...",
-                &check.detail[..check.detail.floor_char_boundary(max_detail.saturating_sub(3))]
+                &check.detail[..check
+                    .detail
+                    .floor_char_boundary(max_detail.saturating_sub(3))]
             )
         } else {
             check.detail.clone()

crates/lore-tui/src/view/mod.rs

@@ -16,12 +16,12 @@ pub mod issue_detail;
 pub mod issue_list;
 pub mod mr_detail;
 pub mod mr_list;
-pub mod search;
-pub mod timeline;
-pub mod trace;
 pub mod scope_picker;
+pub mod search;
 pub mod stats;
 pub mod sync;
+pub mod timeline;
+pub mod trace;
 pub mod who;
 
 use ftui::layout::{Constraint, Flex};
@@ -43,12 +43,12 @@ use issue_detail::render_issue_detail;
 use issue_list::render_issue_list;
 use mr_detail::render_mr_detail;
 use mr_list::render_mr_list;
-use search::render_search;
-use timeline::render_timeline;
-use trace::render_trace;
 use scope_picker::render_scope_picker;
+use search::render_search;
 use stats::render_stats;
 use sync::render_sync;
+use timeline::render_timeline;
+use trace::render_trace;
 use who::render_who;
 
 // ---------------------------------------------------------------------------
@@ -261,10 +261,7 @@ mod tests {
             let has_content = (20..60u16).any(|x| {
                 (8..16u16).any(|y| frame.buffer.get(x, y).is_some_and(|cell| !cell.is_empty()))
             });
-            assert!(
-                has_content,
-                "Expected sync idle content in center area"
-            );
+            assert!(has_content, "Expected sync idle content in center area");
         });
     }
 }

crates/lore-tui/src/view/scope_picker.rs

@@ -8,8 +8,8 @@ use ftui::render::cell::{Cell, PackedRgba};
 use ftui::render::drawing::{BorderChars, Draw};
 use ftui::render::frame::Frame;
 
-use crate::state::scope_picker::ScopePickerState;
 use crate::state::ScopeContext;
+use crate::state::scope_picker::ScopePickerState;
 
 use super::{ACCENT, BG_SURFACE, BORDER, TEXT, TEXT_MUTED};
 
@@ -131,7 +131,10 @@ pub fn render_scope_picker(
         // Truncate label to fit.
         let max_label_len = content_width.saturating_sub(2) as usize; // 2 for prefix
         let display = if label.len() > max_label_len {
-            format!("{prefix}{}...", &label[..label.floor_char_boundary(max_label_len.saturating_sub(3))])
+            format!(
+                "{prefix}{}...",
+                &label[..label.floor_char_boundary(max_label_len.saturating_sub(3))]
+            )
         } else {
             format!("{prefix}{label}")
         };

crates/lore-tui/src/view/stats.rs

@@ -93,7 +93,15 @@ pub fn render_stats(frame: &mut Frame<'_>, state: &StatsState, area: Rect) {
         if y >= area.bottom().saturating_sub(2) {
             break;
         }
-        render_stat_row(frame, area.x + 2, y, label, &format_count(*count), label_width, max_x);
+        render_stat_row(
+            frame,
+            area.x + 2,
+            y,
+            label,
+            &format_count(*count),
+            label_width,
+            max_x,
+        );
         y += 1;
     }
 

crates/lore-tui/src/view/sync.rs

@@ -262,8 +262,16 @@ fn render_summary(frame: &mut Frame<'_>, state: &SyncState, area: Rect) {
         // Summary rows.
         let rows = [
             ("Issues", summary.issues.new, summary.issues.updated),
-            ("MRs", summary.merge_requests.new, summary.merge_requests.updated),
-            ("Discussions", summary.discussions.new, summary.discussions.updated),
+            (
+                "MRs",
+                summary.merge_requests.new,
+                summary.merge_requests.updated,
+            ),
+            (
+                "Discussions",
+                summary.discussions.new,
+                summary.discussions.updated,
+            ),
             ("Notes", summary.notes.new, summary.notes.updated),
         ];
 
@@ -404,7 +412,10 @@ fn render_failed(frame: &mut Frame<'_>, area: Rect, error: &str) {
     // Truncate error to fit screen.
     let max_len = area.width.saturating_sub(4) as usize;
     let display_err = if error.len() > max_len {
-        format!("{}...", &error[..error.floor_char_boundary(max_len.saturating_sub(3))])
+        format!(
+            "{}...",
+            &error[..error.floor_char_boundary(max_len.saturating_sub(3))]
+        )
     } else {
         error.to_string()
     };
@@ -541,9 +552,7 @@ mod tests {
             state.complete(3000);
             state.summary = Some(SyncSummary {
                 elapsed_ms: 3000,
-                project_errors: vec![
-                    ("grp/repo".into(), "timeout".into()),
-                ],
+                project_errors: vec![("grp/repo".into(), "timeout".into())],
                 ..Default::default()
             });
             let area = frame.bounds();