refactor(framemode): unify connected surface chrome via SDF pipeline

- Shadow system rewrite with SDF quads
- Replace ConnectedShape/layer FBOs w/frame & chrome SDF shaders
- Improve frame blur performance
- Plugin performance gate

quickshell/Modules/Notifications/Center/HistoryNotificationCard.qml

@@ -31,7 +31,7 @@ Rectangle {
     height: baseCardHeight + contentItem.extraHeight
     radius: Theme.cornerRadius
     clip: false
-    readonly property bool shadowsAllowed: Theme.elevationEnabled && Quickshell.env("DMS_DISABLE_LAYER") !== "true" && Quickshell.env("DMS_DISABLE_LAYER") !== "1" && !BlurService.enabled
+    readonly property bool shadowsAllowed: Theme.elevationEnabled && Quickshell.env("DMS_DISABLE_LAYER") !== "true" && Quickshell.env("DMS_DISABLE_LAYER") !== "1"
 
     ElevationShadow {
         id: shadowLayer

quickshell/Modules/Notifications/Center/NotificationCard.qml

@@ -47,7 +47,7 @@ Rectangle {
     readonly property real targetHeight: expanded ? (expandedContent.height + cardPadding * 2) : (baseCardHeight + collapsedContent.extraHeight)
     radius: connectedFrameMode ? Theme.connectedSurfaceRadius : Theme.cornerRadius
     scale: (cardHoverHandler.hovered ? 1.004 : 1.0) * listLevelAdjacentScaleInfluence
-    readonly property bool shadowsAllowed: Theme.elevationEnabled && Quickshell.env("DMS_DISABLE_LAYER") !== "true" && Quickshell.env("DMS_DISABLE_LAYER") !== "1" && !BlurService.enabled
+    readonly property bool shadowsAllowed: Theme.elevationEnabled && Quickshell.env("DMS_DISABLE_LAYER") !== "true" && Quickshell.env("DMS_DISABLE_LAYER") !== "1"
     readonly property var shadowElevation: Theme.elevationLevel1
     readonly property real baseShadowBlurPx: (shadowElevation && shadowElevation.blurPx !== undefined) ? shadowElevation.blurPx : 4
     readonly property real hoverShadowBlurBoost: cardHoverHandler.hovered ? Math.min(2, baseShadowBlurPx * 0.25) : 0

quickshell/Modules/Notifications/Popup/NotificationPopup.qml

@@ -641,21 +641,15 @@ PanelWindow {
             shadowOffsetY: content.shadowOffsetY
             shadowColor: content.shadowsAllowed && content.elevLevel ? Theme.elevationShadowColor(content.elevLevel) : "transparent"
             shadowEnabled: !win._isDestroying && win.screenValid && content.shadowsAllowed && !win.connectedFrameMode
-            layer.textureSize: Qt.size(Math.round(width * win.dpr), Math.round(height * win.dpr))
-            layer.textureMirroring: ShaderEffectSource.MirrorVertically
 
-            sourceRect.anchors.fill: undefined
-            sourceRect.x: content.shadowRenderPadding + content.cardInset
-            sourceRect.y: content.shadowRenderPadding + content.cardInset
-            sourceRect.width: Math.max(0, content.width - (content.cardInset * 2))
-            sourceRect.height: Math.max(0, content.height - (content.cardInset * 2))
-            sourceRect.radius: win.connectedFrameMode ? Theme.connectedSurfaceRadius : Theme.cornerRadius
-            sourceRect.color: win.connectedFrameMode ? Theme.floatingSurface : Theme.readableSurface
-            sourceRect.antialiasing: true
-            sourceRect.layer.enabled: false
-            sourceRect.layer.textureSize: Qt.size(0, 0)
-            sourceRect.border.color: notificationData && notificationData.urgency === NotificationUrgency.Critical ? Theme.withAlpha(Theme.primary, 0.3) : Theme.withAlpha(Theme.outline, 0.08)
-            sourceRect.border.width: notificationData && notificationData.urgency === NotificationUrgency.Critical ? 2 : 0
+            sourceX: content.shadowRenderPadding + content.cardInset
+            sourceY: content.shadowRenderPadding + content.cardInset
+            sourceWidth: Math.max(0, content.width - (content.cardInset * 2))
+            sourceHeight: Math.max(0, content.height - (content.cardInset * 2))
+            targetRadius: win.connectedFrameMode ? Theme.connectedSurfaceRadius : Theme.cornerRadius
+            targetColor: win.connectedFrameMode ? Theme.floatingSurface : Theme.readableSurface
+            borderColor: win.notificationData && win.notificationData.urgency === NotificationUrgency.Critical ? Theme.withAlpha(Theme.primary, 0.3) : Theme.withAlpha(Theme.outline, 0.08)
+            borderWidth: win.notificationData && win.notificationData.urgency === NotificationUrgency.Critical ? 2 : 0
         }
 
         // Keep critical accent outside shadow rendering so connected mode still shows it.

quickshell/Modules/Notifications/Popup/NotificationPopupManager.qml

@@ -513,13 +513,30 @@ QtObject {
             ConnectedModeState.clearNotificationState(screenName);
             return;
         }
+        const bodyRect = {
+            x: minX,
+            y: minY,
+            width: maxXEnd - minX,
+            height: maxYEnd - minY
+        };
         ConnectedModeState.setNotificationState(screenName, {
+            kind: "notification",
+            screenName: screenName,
+            phase: "open",
             visible: true,
+            presented: true,
             barSide: notifBarSide,
+            bodyRect: bodyRect,
+            animationOffset: {
+                x: 0,
+                y: 0
+            },
+            scale: 1,
+            opacity: Theme.connectedSurfaceColor.a,
             bodyX: minX,
             bodyY: minY,
-            bodyW: maxXEnd - minX,
-            bodyH: maxYEnd - minY,
+            bodyW: bodyRect.width,
+            bodyH: bodyRect.height,
             omitStartConnector: _notificationOmitStartConnector(),
             omitEndConnector: _notificationOmitEndConnector()
         });