M0: desktop app: toolbar, browser, timeline, GPU viewport, view cube, sketch tools, dialogs, control channel

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

apps/solvecraft/Cargo.toml

@@ -1,5 +1,20 @@
 [package]
 name = "solvecraft"
+description = "SolveCraft desktop app"
 version.workspace = true
 edition.workspace = true
 license.workspace = true
+publish = false
+default-run = "solvecraft"
+
+[lints]
+workspace = true
+
+[dependencies]
+solvecraft-engine = { workspace = true }
+solvecraft-ui-egui = { workspace = true }
+eframe = { workspace = true, features = ["default_fonts", "wgpu", "accesskit", "wayland", "x11"] }
+egui = { workspace = true }
+serde_json = { workspace = true }
+log = { workspace = true }
+rfd = { workspace = true }