LR-PREF-GENERAL + LR-IMP-RAWDEFAULT + LR-VIEW-FULLSCREEN/NAVIGATOR/INFOOVERLAY: Settings dialog, import defaults, view modes

Settings (Cmd+, / app menu on macOS, Edit elsewhere) with General, Import,
Performance and Interface tabs. App settings (startup view, delete
confirmation, GPU, preview size, filmstrip/grid badges, last library) live in
UiState.settings (ui.json); library settings (raw / non-raw / per-camera
import presets, XMP, thumbnail cache size) go through library.preferences into
prefs.json. Import applies the matching default preset; the photo remembers it
as its import look (unedited; Reset returns to it). Open Library… switches
libraries at runtime.

View modes: F full-screen preview (photo on black, arrows step, I cycles the
info overlay, Esc exits), Cmd+Shift+F window full screen, Cmd+I cycles the
loupe info overlay (off / file + date / exposure), Navigator mini map while
zoomed (click/drag pans).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

crates/engine/src/cmd/develop.rs

@@ -128,7 +128,12 @@ pub fn specs() -> Vec<CommandSpec> {
                 .iter()
                 .filter_map(|id| s.develop_of(*id).map(|d| (*id, d)))
                 .filter_map(|(id, d)| {
-                    let fresh = DevelopSettings { wb: lightcraft_develop::WhiteBalance { mode: WbMode::AsShot, ..d.wb }, ..Default::default() };
+                    // back to the photo's import defaults when a default preset gave it its look
+                    let look = s.catalog.photo(id).and_then(|p| p.import_look.clone());
+                    let fresh = match look {
+                        Some(l) => (*l).clone(),
+                        None => DevelopSettings { wb: lightcraft_develop::WhiteBalance { mode: WbMode::AsShot, ..d.wb }, ..Default::default() },
+                    };
                     s.develop_op(id, fresh, "Reset")
                 })
                 .collect();