fix: address diagnostics

lua/dap/hover.lua

@@ -59,7 +59,7 @@ local function hover_async()
             false
         )
     else
-        expr = vim.fn.expand("<cexpr>")
+        expr = vim.fn.expand("<cexpr>") --[[@as string]]
     end
 
     if expr == "" then

lua/git/util.lua

@@ -226,7 +226,7 @@ end
 local Emitter = {}
 Emitter.__index = Emitter
 
----@return ow.Git.Util.Emitter
+---@return ow.Git.Util.Emitter<T>
 function Emitter.new()
     return setmetatable({ _listeners = {} }, Emitter)
 end

lua/linter.lua

@@ -425,14 +425,13 @@ function Linter.add(bufnr, config)
     config.debounce = config.debounce or 100
     config.events = config.events or { "TextChanged", "TextChangedI" }
 
-    local linter = {
+    ---@type ow.lsp.Linter
+    local linter = setmetatable({
         namespace = vim.api.nvim_create_namespace("lsp.linter"),
         augroup = vim.api.nvim_create_augroup("lsp.linter", { clear = false }),
         bufnr = bufnr,
         config = config,
-    }
-
-    linter = setmetatable(linter, Linter)
+    }, Linter)
 
     local success = linter:run()
     if not success then

lua/util.lua

@@ -306,7 +306,7 @@ end
 function M.debounce(fn, delay)
     local timer, err = vim.uv.new_timer()
     if not timer then
-        M.warning("debounce: failed to create timer: %s", err)
+        log.warning("debounce: failed to create timer: %s", err)
         local noop = function() end
         return fn,
             {