Add Ruby lockfiles and remove them from gitignore

.gitignore

@@ -10,9 +10,6 @@ dist/
 wheels/
 *.egg-info
 
-# Bundler-generated files
-Gemfile.lock
-
 # Virtual environments
 .venv
 

mcp-client-ruby/Gemfile.lock

@@ -0,0 +1,37 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    anthropic (1.72.0)
+      base64 (~> 0.1)
+      connection_pool (>= 2, < 4)
+      standardwebhooks (~> 1.0)
+    base64 (0.3.0)
+    bigdecimal (4.1.3)
+    connection_pool (3.0.2)
+    dotenv (3.2.0)
+    hana (1.3.7)
+    json_schemer (2.5.0)
+      bigdecimal
+      hana (~> 1.3)
+      regexp_parser (~> 2.0)
+      simpleidn (~> 0.2)
+    mcp (1.6.0)
+      json_schemer (>= 2.4)
+    regexp_parser (2.12.0)
+    simpleidn (0.3.0)
+    standardwebhooks (1.1.0)
+
+PLATFORMS
+  aarch64-linux
+  arm64-darwin
+  ruby
+  x86_64-darwin
+  x86_64-linux
+
+DEPENDENCIES
+  anthropic (>= 1.72.0)
+  dotenv
+  mcp (>= 1.6.0)
+
+BUNDLED WITH
+   2.6.9

tests/utils.sh

@@ -148,7 +148,8 @@ ensure_built() {
 # Ensure a Ruby project directory has its gems installed.
 #
 # Unlike ensure_built there is no artefact to test for -- a Ruby example has no
-# build step and Gemfile.lock is gitignored -- so ask Bundler directly.
+# build step, and a committed Gemfile.lock says which gems are wanted, not
+# whether they are installed -- so ask Bundler directly.
 ensure_bundled() {
     local dir=$1
     cd "${dir}" || return 1

weather-server-ruby/Gemfile.lock

@@ -0,0 +1,27 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    bigdecimal (4.1.3)
+    hana (1.3.7)
+    json_schemer (2.5.0)
+      bigdecimal
+      hana (~> 1.3)
+      regexp_parser (~> 2.0)
+      simpleidn (~> 0.2)
+    mcp (1.6.0)
+      json_schemer (>= 2.4)
+    regexp_parser (2.12.0)
+    simpleidn (0.3.0)
+
+PLATFORMS
+  aarch64-linux
+  arm64-darwin
+  ruby
+  x86_64-darwin
+  x86_64-linux
+
+DEPENDENCIES
+  mcp (>= 1.6.0)
+
+BUNDLED WITH
+   2.6.9