test(install): cover CLAUDE_CONFIG_DIR always-on registration (#2694)

Adds the coverage the fix lacked (the shared home sandbox deletes
CLAUDE_CONFIG_DIR, so it must be set explicitly): env set -> registration lands
in $CLAUDE_CONFIG_DIR/CLAUDE.md and the default ~/.claude profile is untouched;
env unset -> unchanged ~/.claude/CLAUDE.md with the tilde skill ref. Also adds
the CHANGELOG entry.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

CHANGELOG.md

@@ -4,6 +4,7 @@ Full release notes with details on each version: [GitHub Releases](https://githu
 
 ## 0.9.44 (unreleased)
 
+- Fix: `graphify install` (Claude always-on) now writes the CLAUDE.md registration into `$CLAUDE_CONFIG_DIR` when that env var relocates the Claude profile, instead of always mutating the default `~/.claude/CLAUDE.md` (part of #2694, thanks @AromalBiju1).
 - Fix: a JS/TS inline or nested function expression — including a generator function expression (`function*(k){…}`) — no longer fabricates an INFERRED `indirect_call` when one of its parameters/locals shares a name with an unrelated callable; the expression's own bindings now shadow the name (#2752, thanks @imagineers-tyler), completing the shadow family alongside catch/arrow/loop/external-import (#2757).
 - Fix: a git-tracked file that also matches a `.gitignore` pattern (a committed file later added to `.gitignore`, or a force-added one) is no longer dropped from the corpus, matching git's own behavior of never un-tracking such a file; `.graphifyignore`/`--exclude` stay authoritative and a non-git corpus is unaffected (#2759, thanks @NithishKumar04). The `git ls-files` probe is skipped entirely when no `.gitignore` is in play, so ordinary corpora pay nothing for it.
 

tests/test_install.py

@@ -40,6 +40,52 @@ def test_install_default_claude(tmp_path):
     assert (tmp_path / ".claude" / "skills" / "graphify" / "SKILL.md").exists()
 
 
+def test_install_claude_md_honors_claude_config_dir(tmp_path, monkeypatch):
+    """#2694: with CLAUDE_CONFIG_DIR set, the always-on registration lands in
+    $CLAUDE_CONFIG_DIR/CLAUDE.md — not the default ~/.claude/CLAUDE.md, which the
+    old code mutated regardless of the relocated profile."""
+    from graphify.__main__ import install
+
+    home = tmp_path / "home"
+    home.mkdir()
+    config = tmp_path / "cfg"
+    config.mkdir()
+    monkeypatch.setenv("CLAUDE_CONFIG_DIR", str(config))
+    old = os.getcwd()
+    try:
+        os.chdir(tmp_path)
+        with patch("graphify.__main__.Path.home", return_value=home):
+            install(platform="claude")
+    finally:
+        os.chdir(old)
+
+    cfg_md = config / "CLAUDE.md"
+    assert cfg_md.exists(), "registration did not land in $CLAUDE_CONFIG_DIR"
+    text = cfg_md.read_text()
+    assert "# graphify" in text
+    assert str(config) in text, "skill reference does not point into the config dir"
+    assert not (home / ".claude" / "CLAUDE.md").exists(), "default profile was mutated"
+
+
+def test_install_claude_md_defaults_to_home_when_config_dir_unset(tmp_path, monkeypatch):
+    """Env unset: behavior is unchanged — the block lands in ~/.claude/CLAUDE.md
+    with the tilde skill reference."""
+    from graphify.__main__ import install
+
+    monkeypatch.delenv("CLAUDE_CONFIG_DIR", raising=False)
+    old = os.getcwd()
+    try:
+        os.chdir(tmp_path)
+        with patch("graphify.__main__.Path.home", return_value=tmp_path):
+            install(platform="claude")
+    finally:
+        os.chdir(old)
+
+    md = tmp_path / ".claude" / "CLAUDE.md"
+    assert md.exists()
+    assert "~/.claude/skills/graphify/SKILL.md" in md.read_text()
+
+
 def test_install_codebuddy(tmp_path):
     _install(tmp_path, "codebuddy")
     assert (tmp_path / ".codebuddy" / "skills" / "graphify" / "SKILL.md").exists()