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/session.rs

@@ -95,8 +95,8 @@ pub fn save_session(state: &SessionState, path: &Path) -> Result<(), SessionErro
         fs::create_dir_all(parent).map_err(|e| SessionError::Io(e.to_string()))?;
     }
 
-    let json = serde_json::to_string_pretty(state)
-        .map_err(|e| SessionError::Serialize(e.to_string()))?;
+    let json =
+        serde_json::to_string_pretty(state).map_err(|e| SessionError::Serialize(e.to_string()))?;
 
     // Check size before writing.
     if json.len() as u64 > MAX_SESSION_SIZE {
@@ -112,8 +112,7 @@ pub fn save_session(state: &SessionState, path: &Path) -> Result<(), SessionErro
 
     // Write to temp file, fsync, rename.
     let tmp_path = path.with_extension("tmp");
-    let mut file =
-        fs::File::create(&tmp_path).map_err(|e| SessionError::Io(e.to_string()))?;
+    let mut file = fs::File::create(&tmp_path).map_err(|e| SessionError::Io(e.to_string()))?;
     file.write_all(payload.as_bytes())
         .map_err(|e| SessionError::Io(e.to_string()))?;
     file.sync_all()
@@ -179,10 +178,7 @@ pub fn load_session(path: &Path) -> Result<SessionState, SessionError> {
 
 /// Move a corrupt session file to `.quarantine/` instead of deleting it.
 fn quarantine(path: &Path) -> Result<(), SessionError> {
-    let quarantine_dir = path
-        .parent()
-        .unwrap_or(Path::new("."))
-        .join(".quarantine");
+    let quarantine_dir = path.parent().unwrap_or(Path::new(".")).join(".quarantine");
     fs::create_dir_all(&quarantine_dir).map_err(|e| SessionError::Io(e.to_string()))?;
 
     let filename = path