chore: add ralph infrastructure for rah-light strip-down

- prd.json with 15 user stories for phases 1-3
- prompt.md customized for deletion workflow
- progress.txt initialized

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

ralph/ralph.sh

@@ -0,0 +1,105 @@
+#!/bin/bash
+set -e
+
+# Ralph Autonomous Agent Loop for RA-H
+# Usage: ./ralph/ralph.sh [max_iterations]
+#
+# Runs Claude Code in a loop to implement user stories from prd.json
+# Each iteration: picks a story → implements → verifies → commits → updates status
+
+MAX_ITERATIONS=${1:-10}
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+PROJECT_DIR="$(dirname "$SCRIPT_DIR")"
+PRD_FILE="$SCRIPT_DIR/prd.json"
+PROGRESS_FILE="$SCRIPT_DIR/progress.txt"
+PROMPT_FILE="$SCRIPT_DIR/prompt.md"
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m' # No Color
+
+echo -e "${BLUE}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
+echo -e "${BLUE}  🐕 Ralph Autonomous Agent Loop${NC}"
+echo -e "${BLUE}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
+
+# Verify required files exist
+if [ ! -f "$PRD_FILE" ]; then
+    echo -e "${RED}❌ Error: $PRD_FILE not found${NC}"
+    echo "Create prd.json with your user stories first."
+    exit 1
+fi
+
+if [ ! -f "$PROMPT_FILE" ]; then
+    echo -e "${RED}❌ Error: $PROMPT_FILE not found${NC}"
+    exit 1
+fi
+
+# Initialize progress file if needed
+if [ ! -f "$PROGRESS_FILE" ]; then
+    echo "# Ralph Progress Log" > "$PROGRESS_FILE"
+    echo "Started: $(date)" >> "$PROGRESS_FILE"
+    echo "" >> "$PROGRESS_FILE"
+fi
+
+echo -e "${YELLOW}📋 PRD:${NC} $PRD_FILE"
+echo -e "${YELLOW}📝 Progress:${NC} $PROGRESS_FILE"
+echo -e "${YELLOW}🔄 Max iterations:${NC} $MAX_ITERATIONS"
+echo ""
+
+cd "$PROJECT_DIR"
+
+for i in $(seq 1 $MAX_ITERATIONS); do
+    echo -e "${BLUE}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
+    echo -e "${GREEN}🔁 Iteration $i of $MAX_ITERATIONS${NC}"
+    echo -e "${BLUE}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
+    echo ""
+
+    # Build the full prompt with current state
+    FULL_PROMPT="$(cat "$PROMPT_FILE")
+
+---
+
+## Current State
+
+### prd.json
+\`\`\`json
+$(cat "$PRD_FILE")
+\`\`\`
+
+### progress.txt
+\`\`\`
+$(cat "$PROGRESS_FILE")
+\`\`\`
+"
+
+    # Run Claude Code with the prompt via stdin
+    # Using --print for non-interactive mode
+    OUTPUT=$(echo "$FULL_PROMPT" | claude --print \
+        --allowedTools "Edit,Write,Read,Bash,Glob,Grep" 2>&1) || true
+
+    echo "$OUTPUT"
+
+    # Check for completion signal
+    if echo "$OUTPUT" | grep -q "<promise>COMPLETE</promise>"; then
+        echo ""
+        echo -e "${GREEN}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
+        echo -e "${GREEN}✅ Ralph complete! All stories passing.${NC}"
+        echo -e "${GREEN}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
+        exit 0
+    fi
+
+    # Brief pause between iterations
+    echo ""
+    echo -e "${YELLOW}⏳ Pausing 3s before next iteration...${NC}"
+    sleep 3
+done
+
+echo ""
+echo -e "${YELLOW}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
+echo -e "${YELLOW}⚠️  Max iterations ($MAX_ITERATIONS) reached${NC}"
+echo -e "${YELLOW}    Check progress.txt for status${NC}"
+echo -e "${YELLOW}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
+exit 1