feat(ralph): v1.1.0 - Context detection, adaptive questions, browser verification

Major improvements inspired by coleam00/ai-agents-masterclass:

- prd.md: Auto-detect project context (package.json, pyproject.toml, etc.)
  - NEW_PROJECT_MODE: ~10 questions for new projects
  - FEATURE_MODE: ~5-7 questions for existing projects
  - Uses AskUserQuestion for interactive UX
  - Optional WebSearch for best practices

- convert.md: Extended functionality
  - Generates .claude/settings.json with allow-list per tech stack
  - Extracts real commands from package.json scripts
  - Adds techStack info to prd.json
  - Creates screenshots/ directory

- prompt.md: Browser verification with agent-browser CLI
  - Compact refs (@e1, @e2) for minimal token usage
  - requiresBrowserCheck flag per story
  - Screenshot saving for UI verification

- ralph.sh: Screenshots directory + agent-browser check

- README.md: Complete rewrite with new features

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.claude-plugin/marketplace.json

@@ -17,9 +17,9 @@
     {
       "name": "ralph",
       "source": "./plugins/ralph",
-      "description": "Autonomous loop for PRD implementation with Claude Code",
-      "version": "1.0.0",
-      "keywords": ["ralph", "prd", "autonomous", "agent", "loop"]
+      "description": "Autonomous loop for PRD implementation - context detection, adaptive questions, browser verification",
+      "version": "1.1.0",
+      "keywords": ["ralph", "prd", "autonomous", "agent", "loop", "browser", "verification"]
     }
   ]
 }