feat: initial release of codetyper.nvim v0.2.0

AI-powered coding partner for Neovim with LLM integration.

Features:
- Split view for coder files (*.coder.*) and target files
- Tag-based prompts with /@ and @/ syntax
- Claude API and Ollama (local) LLM support
- Smart prompt detection (refactor, add, document, explain)
- Automatic code injection into target files
- Project tree logging (.coder/tree.log)
- Auto .gitignore management

Ask Panel (chat interface):
- Fixed at 1/4 screen width
- File attachment with @ key
- Ctrl+n for new chat
- Ctrl+Enter to submit
- Proper window close behavior
- Navigation with Ctrl+h/j/k/l

Commands: Coder, CoderOpen, CoderClose, CoderToggle,
CoderProcess, CoderAsk, CoderTree, CoderTreeView

lua/codetyper/config.lua

@@ -0,0 +1,84 @@
+---@mod codetyper.config Configuration module for Codetyper.nvim
+
+local M = {}
+
+---@type CoderConfig
+local defaults = {
+  llm = {
+    provider = "claude",
+    claude = {
+      api_key = nil, -- Will use ANTHROPIC_API_KEY env var if nil
+      model = "claude-sonnet-4-20250514",
+    },
+    ollama = {
+      host = "http://localhost:11434",
+      model = "codellama",
+    },
+  },
+  window = {
+    width = 0.25, -- 25% of screen width (1/4)
+    position = "left",
+    border = "rounded",
+  },
+  patterns = {
+    open_tag = "/@",
+    close_tag = "@/",
+    file_pattern = "*.coder.*",
+  },
+  auto_gitignore = true,
+  auto_open_ask = true, -- Auto-open Ask panel on startup
+}
+
+--- Deep merge two tables
+---@param t1 table Base table
+---@param t2 table Table to merge into base
+---@return table Merged table
+local function deep_merge(t1, t2)
+  local result = vim.deepcopy(t1)
+  for k, v in pairs(t2) do
+    if type(v) == "table" and type(result[k]) == "table" then
+      result[k] = deep_merge(result[k], v)
+    else
+      result[k] = v
+    end
+  end
+  return result
+end
+
+--- Setup configuration with user options
+---@param opts? CoderConfig User configuration options
+---@return CoderConfig Final configuration
+function M.setup(opts)
+  opts = opts or {}
+  return deep_merge(defaults, opts)
+end
+
+--- Get default configuration
+---@return CoderConfig Default configuration
+function M.get_defaults()
+  return vim.deepcopy(defaults)
+end
+
+--- Validate configuration
+---@param config CoderConfig Configuration to validate
+---@return boolean, string? Valid status and optional error message
+function M.validate(config)
+  if not config.llm then
+    return false, "Missing LLM configuration"
+  end
+
+  if config.llm.provider ~= "claude" and config.llm.provider ~= "ollama" then
+    return false, "Invalid LLM provider. Must be 'claude' or 'ollama'"
+  end
+
+  if config.llm.provider == "claude" then
+    local api_key = config.llm.claude.api_key or vim.env.ANTHROPIC_API_KEY
+    if not api_key or api_key == "" then
+      return false, "Claude API key not configured. Set llm.claude.api_key or ANTHROPIC_API_KEY env var"
+    end
+  end
+
+  return true
+end
+
+return M