feat(umbriel): enhance window bindings and monitor layouts

dot_config/umbriel/outputs.toml

@@ -4,10 +4,10 @@
 #
 # Scale: the externals land near 110 logical px per inch (the ultrawide's
 # native density), so a window keeps its size moving between them. The laptop
-# panel runs denser (149) at 1.5: at 2 its 1280x800 felt too zoomed in.
+# panel runs denser (112) at 2: 1280x800 logical.
 #
 #   display          physical       ppi   scale  logical     logical ppi
-#   laptop panel     2560x1600      224   1.5    1706x1066   149
+#   laptop panel     2560x1600      224   2      1280x800    112
 #   Studio Display   5120x2880      218   2      2560x1440   109
 #   ultrawide        3440x1440      110   1      3440x1440   110
 #   portables        1920x1080      141   1.25   1536x864    113
@@ -23,29 +23,81 @@
 # Laptop panel, eDP-1 (niri 91-internal-display).
 [output."Tianma Microelectronics Ltd. TL134ADXP03 Unknown"]
 position = [0, 0]
-scale = 1.5
+scale = 2.0
 vrr = "fullscreen"
 focus_at_startup = true
 
+# New scrolling columns take 80% of the narrow panel (global default is 1/3).
+[output."Tianma Microelectronics Ltd. TL134ADXP03 Unknown".layout.scrolling]
+default_extent_fraction = 0.8
+
 # Apple Studio Display (niri 93-apple-display): 2560x1440 logical.
 [output."Apple Computer Inc StudioDisplay 0x984262A7"]
-position = [-2560, -374]
+position = [-2560, -640]
 scale = 2.0
 
 # Samsung ultrawide (niri 92-ultrawide, Hyprland monitors.lua): 3440x1440.
 [output."Samsung Electric Company S34CG50 HNTY501103"]
 mode = "3440x1440@100"
-position = [-3440, -374]
+position = [-3440, -640]
 scale = 1.0
 vrr = "fullscreen"
 
+# Ultrawide workspaces start in dwindle. Umbriel has no per-output layout mode;
+# workspace rules need a name or an index, so positions 1–9 (Mod+1…9) each get
+# one. Mod+W still flips a workspace back to scrolling.
+[[workspace]]
+index = 1
+output = "Samsung Electric Company S34CG50 HNTY501103"
+layout.mode = "dwindle"
+
+[[workspace]]
+index = 2
+output = "Samsung Electric Company S34CG50 HNTY501103"
+layout.mode = "dwindle"
+
+[[workspace]]
+index = 3
+output = "Samsung Electric Company S34CG50 HNTY501103"
+layout.mode = "dwindle"
+
+[[workspace]]
+index = 4
+output = "Samsung Electric Company S34CG50 HNTY501103"
+layout.mode = "dwindle"
+
+[[workspace]]
+index = 5
+output = "Samsung Electric Company S34CG50 HNTY501103"
+layout.mode = "dwindle"
+
+[[workspace]]
+index = 6
+output = "Samsung Electric Company S34CG50 HNTY501103"
+layout.mode = "dwindle"
+
+[[workspace]]
+index = 7
+output = "Samsung Electric Company S34CG50 HNTY501103"
+layout.mode = "dwindle"
+
+[[workspace]]
+index = 8
+output = "Samsung Electric Company S34CG50 HNTY501103"
+layout.mode = "dwindle"
+
+[[workspace]]
+index = 9
+output = "Samsung Electric Company S34CG50 HNTY501103"
+layout.mode = "dwindle"
+
 # Portable HDMI panel, mounted portrait (niri 94-portable-hdmi): 864x1536.
 [output."PNP(AOP) 16PM1QB 14490001D3X00"]
 transform = "90"
-position = [-864, -470]
+position = [-864, -736]
 scale = 1.25
 
 # Portable USB-C panel (niri 95-portable-usbc): 1536x864.
 [output."ASUSTek COMPUTER INC ASUS MB16AC M8LMTF195749"]
-position = [-1536, 202]
+position = [-1536, -64]
 scale = 1.25