fix: link current SDK for native window decorations

Makefile

@@ -3,9 +3,11 @@
 APP := .build/Conjure.app
 INSTALL_DIR ?= /Applications
 CODE_SIGN_IDENTITY ?= -
+# Keep AppKit on the current SDK appearance, not deployment-target compatibility styling.
+PLATFORM_FLAGS := -Xlinker -platform_version -Xlinker macos -Xlinker 14.0 -Xlinker $(shell xcrun --show-sdk-version)
 
 build:
-	swift build -c release
+	swift build -c release $(PLATFORM_FLAGS)
 	mkdir -p $(APP)/Contents/MacOS $(APP)/Contents/Resources
 	cp .build/release/Conjure $(APP)/Contents/MacOS/Conjure
 	cp Resources/Info.plist $(APP)/Contents/Info.plist
@@ -21,4 +23,4 @@ install: build
 	swift Scripts/install.swift "$(APP)" "$(INSTALL_DIR)"
 
 test:
-	swift test
+	swift test $(PLATFORM_FLAGS)

README.md

@@ -6,6 +6,8 @@ A native macOS launcher for applications, calculations, unit and currency conver
 
 Requires macOS 14 or later and a Swift 6 toolchain (Xcode 16 or later).
 
+The Makefile links with the active Xcode SDK version while retaining the macOS 14 deployment target. This keeps AppKit’s native window controls on the current system appearance instead of older-SDK compatibility styling. Use `make build` / `make run` for this build configuration; plain `swift build` does not include the explicit linker platform flags.
+
 ```sh
 make run     # Build and launch .build/Conjure.app.
 make build   # Build without launching.

TODO.md

@@ -4,5 +4,7 @@
 - [ ] bug: looks like dragging around the conjure windows can cause other conjure windows of difference window sizes to spawn offset the corner instead of from the center of the windows
     - when moving a conjure window, the saved position should always be the center of the window, and windows should always be spawned at some position taking to mean their center.
     - this should keep window placement invariant of corner window sizes
+- [ ] conjure notes:
+    - add action to delete a note (currently selected note)
 - [ ] the guidelines for centering the application when dragged are blurry on some external monitors.
     - track down the cause and fix it.