chore(ui): upstream config updates for scrollview, bufferline, snacks, todo

- scrollview: mode virtual→auto, winblend→winblend_gui, add diagnostics sign
- bufferline: numbers nil→"none" for explicit valid value
- snacks: add scroll.animate_repeat for hold-to-scroll acceleration
- todo-comments: add missing colors.test entry for TEST keyword

Author: charliie-dev

lua/modules/configs/ui/bufferline.lua

@@ -19,7 +19,7 @@ return function()
 			diagnostics_indicator = function(count)
 				return "(" .. count .. ")"
 			end,
-			numbers = nil,
+			numbers = "none",
 			max_name_length = 20,
 			max_prefix_length = 13,
 			buffer_close_icon = icons.ui.Close,

lua/modules/configs/ui/scrollview.lua

@@ -2,9 +2,9 @@ return function()
 	local icons = { diagnostics = require("modules.utils.icons").get("diagnostics", true) }
 
 	require("modules.utils").load_plugin("scrollview", {
-		mode = "virtual",
-		winblend = 0,
-		signs_on_startup = { "folds", "marks", "search" },
+		mode = "auto",
+		winblend_gui = 0,
+		signs_on_startup = { "diagnostics", "folds", "marks", "search" },
 		diagnostics_error_symbol = icons.diagnostics.Error,
 		diagnostics_warn_symbol = icons.diagnostics.Warning,
 		diagnostics_info_symbol = icons.diagnostics.Information,

lua/modules/configs/ui/snacks.lua

@@ -125,6 +125,11 @@ return function()
 			animate = {
 				duration = { step = 15, total = 150 },
 			},
+			animate_repeat = {
+				delay = 100,
+				duration = { step = 5, total = 50 },
+				easing = "linear",
+			},
 		},
 		terminal = { enabled = true },
 		quickfile = { enabled = true },

lua/modules/configs/ui/todo.lua

@@ -53,6 +53,7 @@ return function()
 			info = { "DiagnosticInfo", "#2563EB" },
 			hint = { "DiagnosticHint", "#F5C2E7" },
 			default = { "Conditional", "#7C3AED" },
+			test = { "Identifier", "#FF00FF" },
 		},
 	})
 end