fix(tools): formatter bracket rules, LSP compiler diagnostics, vocabulary sync

- ludic-fmt: `rows[i]`, `new []int`, `s[a..b]`, `emit(`, `~x`, list-literal
  and query-tag braces stay tight; member calls hug their paren
  (`Date.new(`, `Prefab.spawn(`); `<< >> & | ^ ~` are operators and
  `&& ||` are not — mirrored in ludic_syntax.h, LudicLexer.kt and the
  TextMate grammar. 149 of 274 tracked sources failed --check before.
- ludic-lsp: `initializationOptions.compilerDiagnostics` / `compilerPath`
  are honoured — on save the document's compilation unit is compiled and
  `file:line: error: msg` is published as a "ludicc" diagnostic (the
  option had been documented but never implemented); the workspace scan
  file is per process; bracket codes spelled as char literals
- Overlay added to LUDIC_PHASES, LudicTokens.kt, ludic-mode.el and the
  grammar (the game uses it; check-vocabulary flagged the drift)
- editors: VS Code snippets/package.json/extension.js (`${workspaceFolder}`
  and `~` expansion, PATH lookup, Apache-2.0, real repo URL), Neovim root
  markers, Helix/Zed/Sublime bin/ paths, Emacs vocabulary, JetBrains
  comments; tools/editors/README.md no longer describes C tooling
- .forgejo workflows clone `${{ github.server_url }}/${{ github.repository }}`
  so a fork or mirror tests itself; the docs publish pushes the same way

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

tools/editors/neovim/lua/ludic.lua

@@ -3,7 +3,7 @@
 --   :lua require('ludic').setup()
 --   -- or, from init.lua:
 --   vim.opt.runtimepath:append('/path/to/gpp/tools/editors/neovim')
---   require('ludic').setup({ server = '/path/to/gpp/build/ludic-lsp' })
+--   require('ludic').setup({ server = '/path/to/gpp/bin/ludic-lsp' })
 --
 -- Highlighting here comes from the language server's semantic tokens, which
 -- Neovim applies natively -- there is no tree-sitter grammar to install and no
@@ -43,7 +43,7 @@ function M.setup(opts)
     end,
   })
 
-  local root_markers = { 'build.sh', 'LANGUAGE.md', '.git' }
+  local root_markers = { 'package.ludic', 'LANGUAGE.md', '.git' }
 
   local function root_dir(fname)
     local found = vim.fs.find(root_markers, { path = vim.fs.dirname(fname), upward = true })[1]
@@ -57,10 +57,10 @@ function M.setup(opts)
     callback = function(args)
       local root = root_dir(vim.api.nvim_buf_get_name(args.buf))
       local server = opts.server or find_executable(
-        { 'ludic-lsp' }, { root }, { 'build', 'tools/build', 'bin', '.' })
+        { 'ludic-lsp' }, { root }, { 'bin', 'build', '.' })
       if not server then return end
       local compiler = opts.compiler or find_executable(
-        { 'ludicc' }, { root }, { 'build', 'bin', '.' }) or ''
+        { 'ludicc' }, { root }, { 'bin', 'build', '.' }) or ''
 
       vim.lsp.start({
         name = 'ludic-lsp',