feat(claude): add claude config and wire it into make install

I moved Claude Code's user-level config into this repo so it travels with rulesets across machines instead of being machine-specific. The three pieces are settings.json, .mcp.json, and commands/refactor.md.

I extended make install, uninstall, and list to handle the new .claude/ directory. The wildcard for CLAUDE_CONFIG matches both `*.json` and `.*.json` because make's glob skips dotfiles by default. Without the dot variant, .mcp.json wouldn't get picked up.

I also added settings.local.json to .gitignore. That file is per-machine by convention and shouldn't ever land in the shared repo.

1 files changed, 7 insertions, 0 deletions

diff --git a/.claude/.mcp.json b/.claude/.mcp.json
new file mode 100644
index 0000000..a524320
--- /dev/null
+++ b/.claude/.mcp.json
@@ -0,0 +1,7 @@
+{
+  "mcpServers": {
+    "miro": {
+      "url": "https://mcp.miro.com/"
+    }
+  }
+}