Add ability to reference files in prompt buffer

- type @ in the prompt to fuzzy-search and reference project files, content gets resolved and injected into LLMcontext
- moved completion provider logic out of cmp.lua into agents and files domain modules
- added completions registry to support multiple trigger characters (# rules, @ files)
- added tests for file discovery, fuzzy matching, and the completions registry

1 files changed, 53 insertions, 54 deletions

diff --git a/scripts/ci/install_treesitter_parsers.lua b/scripts/ci/install_treesitter_parsers.lua
index 6393fd8..b0f59a4 100644
--- a/scripts/ci/install_treesitter_parsers.lua
+++ b/scripts/ci/install_treesitter_parsers.lua
@@ -1,72 +1,71 @@
 local install_dir = vim.fn.stdpath("data") .. "/site"
 local ok_setup, setup_err = pcall(function()
-    require("nvim-treesitter").setup({
-        install_dir = install_dir,
-    })
+  require("nvim-treesitter").setup({
+    install_dir = install_dir,
+  })
 end)
 
 if not ok_setup then
-    vim.api.nvim_echo(
-        { { "Error: " .. tostring(setup_err), "ErrorMsg" } },
-        true,
-        {}
-    )
-    vim.cmd("cq")
+  vim.api.nvim_echo(
+    { { "Error: " .. tostring(setup_err), "ErrorMsg" } },
+    true,
+    {}
+  )
+  vim.cmd("cq")
 end
 
 local ok_install, install_err = pcall(function()
-    require("nvim-treesitter").install({
-        "c",
-        "cpp",
-        "go",
-        "lua",
-        "php",
-        "python",
-        "typescript",
-        "javascript",
-        "java",
-        "ruby",
-        "tsx",
-        "c_sharp",
-        "vue",
-    }):wait(300000)
+  require("nvim-treesitter")
+    .install({
+      "c",
+      "cpp",
+      "go",
+      "lua",
+      "php",
+      "python",
+      "typescript",
+      "javascript",
+      "java",
+      "ruby",
+      "tsx",
+      "c_sharp",
+      "vue",
+    })
+    :wait(300000)
 end)
 
 if not ok_install then
-    vim.api.nvim_echo({
-        { "Error: " .. tostring(install_err), "ErrorMsg" },
-    }, true, {})
-    vim.cmd("cq")
+  vim.api.nvim_echo({
+    { "Error: " .. tostring(install_err), "ErrorMsg" },
+  }, true, {})
+  vim.cmd("cq")
 end
 
 local required_parsers = {
-    c = "c.so",
-    cpp = "cpp.so",
-    go = "go.so",
-    lua = "lua.so",
-    php = "php.so",
-    python = "python.so",
-    typescript = "typescript.so",
-    javascript = "javascript.so",
-    java = "java.so",
-    ruby = "ruby.so",
-    tsx = "tsx.so",
-    c_sharp = "c_sharp.so",
-    vue = "vue.so",
+  c = "c.so",
+  cpp = "cpp.so",
+  go = "go.so",
+  lua = "lua.so",
+  php = "php.so",
+  python = "python.so",
+  typescript = "typescript.so",
+  javascript = "javascript.so",
+  java = "java.so",
+  ruby = "ruby.so",
+  tsx = "tsx.so",
+  c_sharp = "c_sharp.so",
+  vue = "vue.so",
 }
 
 for lang, filename in pairs(required_parsers) do
-    local parser_path = install_dir .. "/parser/" .. filename
-    if not vim.uv.fs_stat(parser_path) then
-        vim.api.nvim_echo({
-            {
-                "Error: "
-                    .. lang
-                    .. " parser missing after install: "
-                    .. parser_path,
-                "ErrorMsg",
-            },
-        }, true, {})
-        vim.cmd("cq")
-    end
+  local parser_path = install_dir .. "/parser/" .. filename
+  if not vim.uv.fs_stat(parser_path) then
+    vim.api.nvim_echo({
+      {
+        "Error: " .. lang .. " parser missing after install: " .. parser_path,
+        "ErrorMsg",
+      },
+    }, true, {})
+    vim.cmd("cq")
+  end
 end