refactor: consolidate Mason configuration with dynamic framework support

- Replace separate python.lua and vue.lua configs with unified init.lua
- Add dynamic tool installation based on FRAMEWORK environment variable
- Update avante.nvim plugin version from 0.0.23 to 0.0.27
- Remove obsolete mason/.gitignore file

lua/plugins/avante-nvim.lua

@@ -4,7 +4,7 @@ if true then return {} end -- WARN: REMOVE THIS LINE TO ACTIVATE THIS FILE
 return {
   { -- further customize the options set by the community
     "yetone/avante.nvim",
-    version = "0.0.23",
+    version = "0.0.27",
     ---@type avante.Config
     opts = {
       provider = "deepseek",

lua/plugins/mason/init.lua

@@ -0,0 +1,47 @@
+-- Mason plugin configuration for automatic tool installation
+-- Dynamically installs tools based on the FRAMEWORK environment variable
+
+-- Framework-specific tool configurations
+local FRAMEWORK_TOOLS = {
+  python = {
+    "black",
+    "python-lsp-server",
+    "mypy",
+    "pylint",
+    "flake8",
+    "pylama",
+    "bandit",
+    "pydocstyle",
+    "pyproject-flake8",
+    "pyproject-fmt",
+    "reorder-python-imports",
+  },
+  vue = {
+    "eslint-lsp",
+    "stylelint-lsp",
+    "tailwindcss-language-server",
+    "typescript-language-server",
+    "vue-language-server",
+    "stylelint",
+    "prettier",
+  }
+}
+
+--- Retrieves the appropriate tool set based on the current framework environment
+--- @return table List of tools to install for the detected framework
+local function get_framework_tools()
+  local current_framework = os.getenv("FRAMEWORK")
+  return FRAMEWORK_TOOLS[current_framework] or {}
+end
+
+---@type LazySpec
+return {
+  -- Mason tool installer for automatic package management
+  {
+    "WhoIsSethDaniel/mason-tool-installer.nvim",
+    opts = {
+      -- Install tools based on the detected framework
+      ensure_installed = get_framework_tools(),
+    },
+  },
+}