feat: add per-project language bundles + elisp ruleset

Introduces a second install mode alongside the existing global symlinks:
per-project language bundles that copy a language-specific Claude Code
setup (rules, hooks, settings, pre-commit) into a target project.

Layout additions:
  languages/elisp/       - Emacs Lisp bundle (rules, hooks, settings, CLAUDE.md)
  scripts/install-lang.sh - shared install logic

Makefile additions:
  make help              - unified help text
  make install-lang LANG=<lang> PROJECT=<path> [FORCE=1]
  make install-elisp PROJECT=<path> [FORCE=1]   (shortcut)
  make list-languages    - show available bundles

Elisp bundle contents:
  - CLAUDE.md template (seed on first install, preserved on update)
  - .claude/rules/elisp.md, elisp-testing.md, verification.md
  - .claude/hooks/validate-el.sh (check-parens, byte-compile, run matching tests)
  - .claude/settings.json (permission allowlist, hook wiring)
  - githooks/pre-commit (secret scan + staged-file paren check)
  - gitignore-add.txt (append .claude/settings.local.json)

Hooks use \$CLAUDE_PROJECT_DIR with a script-relative fallback, so the
same bundle works on any machine or clone path. Install activates git
hooks via core.hooksPath=githooks automatically. Re-running install is
idempotent; CLAUDE.md is never overwritten without FORCE=1.

1 files changed, 70 insertions, 0 deletions

diff --git a/languages/elisp/claude/settings.json b/languages/elisp/claude/settings.json
new file mode 100644
index 0000000..cca0eaa
--- /dev/null
+++ b/languages/elisp/claude/settings.json
@@ -0,0 +1,70 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash(make)",
+      "Bash(make help)",
+      "Bash(make targets)",
+      "Bash(make test)",
+      "Bash(make test *)",
+      "Bash(make test-all)",
+      "Bash(make test-unit)",
+      "Bash(make test-integration)",
+      "Bash(make test-file *)",
+      "Bash(make test-name *)",
+      "Bash(make validate-parens)",
+      "Bash(make validate-modules)",
+      "Bash(make compile)",
+      "Bash(make lint)",
+      "Bash(make profile)",
+      "Bash(emacs --batch *)",
+      "Bash(emacs -Q --batch *)",
+      "Bash(git status)",
+      "Bash(git status *)",
+      "Bash(git diff)",
+      "Bash(git diff *)",
+      "Bash(git log)",
+      "Bash(git log *)",
+      "Bash(git show)",
+      "Bash(git show *)",
+      "Bash(git blame *)",
+      "Bash(git branch)",
+      "Bash(git branch -v)",
+      "Bash(git branch -a)",
+      "Bash(git branch --list *)",
+      "Bash(git remote)",
+      "Bash(git remote -v)",
+      "Bash(git remote show *)",
+      "Bash(git ls-files *)",
+      "Bash(git rev-parse *)",
+      "Bash(git cat-file *)",
+      "Bash(git stash list)",
+      "Bash(git stash show *)",
+      "Bash(jq *)",
+      "Bash(date)",
+      "Bash(date *)",
+      "Bash(which *)",
+      "Bash(file *)",
+      "Bash(ls)",
+      "Bash(ls *)",
+      "Bash(wc *)",
+      "Bash(du *)",
+      "Bash(readlink *)",
+      "Bash(realpath *)",
+      "Bash(basename *)",
+      "Bash(dirname *)"
+    ]
+  },
+  "hooks": {
+    "PostToolUse": [
+      {
+        "matcher": "Edit|Write|MultiEdit",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "$CLAUDE_PROJECT_DIR/.claude/hooks/validate-el.sh"
+          }
+        ]
+      }
+    ]
+  }
+}