Fix Finder file drop routing for portal-hosted terminals

GhosttyTabsTests/CmuxWebViewKeyEquivalentTests.swift

@@ -1858,4 +1858,33 @@ final class TerminalWindowPortalLifecycleTests: XCTestCase {
         XCTAssertEqual(portal.debugEntryCount(), 1, "Only the live anchored hosted view should remain tracked")
         XCTAssertEqual(portal.debugHostedSubviewCount(), 1, "Stale anchorless hosted views should be detached from hostView")
     }
+
+    func testTerminalViewAtWindowPointResolvesPortalHostedSurface() {
+        let window = NSWindow(
+            contentRect: NSRect(x: 0, y: 0, width: 500, height: 300),
+            styleMask: [.titled, .closable],
+            backing: .buffered,
+            defer: false
+        )
+        let portal = WindowTerminalPortal(window: window)
+        guard let contentView = window.contentView else {
+            XCTFail("Expected content view")
+            return
+        }
+
+        let anchor = NSView(frame: NSRect(x: 40, y: 50, width: 200, height: 120))
+        contentView.addSubview(anchor)
+
+        let hosted = GhosttySurfaceScrollView(
+            surfaceView: GhosttyNSView(frame: NSRect(x: 0, y: 0, width: 100, height: 80))
+        )
+        portal.bind(hostedView: hosted, to: anchor, visibleInUI: true)
+
+        let center = NSPoint(x: anchor.bounds.midX, y: anchor.bounds.midY)
+        let windowPoint = anchor.convert(center, to: nil)
+        XCTAssertNotNil(
+            portal.terminalViewAtWindowPoint(windowPoint),
+            "Portal hit-testing should resolve the terminal view for Finder file drops"
+        )
+    }
 }

Sources/GhosttyTerminalView.swift

@@ -3049,6 +3049,11 @@ final class GhosttySurfaceScrollView: NSView {
         return true
     }
 
+    func terminalViewForDrop(at point: NSPoint) -> GhosttyNSView? {
+        guard bounds.contains(point), !isHidden else { return nil }
+        return surfaceView
+    }
+
 #if DEBUG
     /// Sends a synthetic Ctrl+D key press directly to the surface view.
     /// This exercises the same key path as real keyboard input (ghostty_surface_key),

Sources/TerminalWindowPortal.swift

@@ -261,12 +261,21 @@ final class WindowTerminalPortal: NSObject {
     }
 
     func terminalViewAtWindowPoint(_ windowPoint: NSPoint) -> GhosttyNSView? {
-        guard let hitView = viewAtWindowPoint(windowPoint) else { return nil }
-        var current: NSView? = hitView
-        while let view = current {
-            if let terminal = view as? GhosttyNSView { return terminal }
-            current = view.superview
+        guard ensureInstalled() else { return nil }
+        let point = hostView.convert(windowPoint, from: nil)
+
+        for subview in hostView.subviews.reversed() {
+            guard let hostedView = subview as? GhosttySurfaceScrollView else { continue }
+            let hostedId = ObjectIdentifier(hostedView)
+            guard entriesByHostedId[hostedId] != nil else { continue }
+            guard !hostedView.isHidden else { continue }
+            guard hostedView.frame.contains(point) else { continue }
+            let localPoint = hostedView.convert(point, from: hostView)
+            if let terminal = hostedView.terminalViewForDrop(at: localPoint) {
+                return terminal
+            }
         }
+
         return nil
     }
 }