remove docs from repo, add codesign to install.sh

Docs contain internal planning (token economics, growth plan) that
should not be public. Keep locally via .gitignore.
Added macOS ad-hoc codesign step to install.sh.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitignore

@@ -1,2 +1,3 @@
 /target
 CLAUDE.md
+docs/

README.md

@@ -84,7 +84,7 @@ Query → Overrides → .numa TLD → Blocklist → Local Zones → Cache → Up
 
 No DNS libraries. The wire protocol — headers, labels, compression pointers, record types — is parsed and serialized by hand. Runs on `tokio` + `axum`, async per-query task spawning.
 
-[Full API reference (22 endpoints)](docs/development-plan.md) · [Configuration reference](numa.toml)
+[Configuration reference](numa.toml)
 
 ## Roadmap
 

install.sh

@@ -58,6 +58,12 @@ else
 fi
 
 chmod +x "$INSTALL_DIR/numa"
+
+# macOS: ad-hoc codesign (required or the binary gets killed)
+if [ "$OS_NAME" = "macos" ]; then
+  codesign -f -s - "$INSTALL_DIR/numa" 2>/dev/null || true
+fi
+
 rm -rf "$TMP"
 
 echo ""