Add lostconf to CI (#72)

* Add lostconf to CI

Add lostconf job to detect stale configuration patterns in .rubocop.yml
and .yard-lint.yml files. This helps maintain config hygiene by catching
exclude patterns that no longer match any files.

Changes:
- Add package.json with lostconf dependency
- Add lostconf CI job to workflow
- Add package.json to Renovate includePaths

* Fix stale patterns in config files

Author: mensfeld

.github/workflows/ci.yml

@@ -68,13 +68,31 @@ jobs:
       - name: Run yard-lint
         run: bundle exec yard-lint lib/
 
+  lostconf:
+    timeout-minutes: 5
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
+        with:
+          fetch-depth: 0
+      - name: Set up Node.js
+        uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
+        with:
+          node-version: '20'
+          cache: 'npm'
+      - name: Install dependencies
+        run: npm ci
+      - name: Run lostconf
+        run: npx lostconf --fail-on-stale
+
   ci-success:
     name: CI Success
     runs-on: ubuntu-latest
     if: always()
     needs:
       - specs
       - yard-lint
+      - lostconf
     steps:
       - name: Check all jobs passed
         if: |

.rubocop.yml

@@ -11,38 +11,25 @@ Style/StringLiterals:
 
 Layout/LineLength:
   Max: 120
-  Exclude:
-    - 'lib/llms_txt/cli.rb'
 
 Metrics/ClassLength:
   Max: 200
-  Exclude:
-    - 'lib/llms_txt/cli.rb'
 
 Metrics/MethodLength:
   Max: 35
-  Exclude:
-    - 'lib/llms_txt/cli.rb'
 
 Metrics/AbcSize:
   Max: 40
-  Exclude:
-    - 'lib/llms_txt/cli.rb'
 
 Metrics/CyclomaticComplexity:
   Max: 15
-  Exclude:
-    - 'lib/llms_txt/config.rb'
 
 Metrics/PerceivedComplexity:
   Max: 15
-  Exclude:
-    - 'lib/llms_txt/config.rb'
 
 Metrics/BlockLength:
   Exclude:
     - 'spec/**/*'
-    - 'lib/llms_txt/cli.rb'
     - '*.gemspec'
 
 Style/FrozenStringLiteralComment:

.yard-lint.yml

@@ -7,11 +7,10 @@ AllValidators:
   - "--private"
   - "--protected"
   Exclude:
-  - "\\.git"
+  - .git/**/*
   - vendor/**/*
   - node_modules/**/*
   - spec/**/*
-  - test/**/*
   FailOnSeverity: convention
   MinCoverage: 99.0
   DiffMode: