✨ feat: add product-owner-assistant skill for epic and story management

- Created comprehensive product-owner-assistant skill
- Implements epic creation and management
- User story organization and linking
- Epic progress tracking
- Backlog refinement support
- Wiki integration templates
- 15KB comprehensive documentation
- 7.5KB quick start guide
- 8KB implementation summary
- Agile epic management reference guide
- Gitea wiki formatting reference

This skill provides the foundation for:
- Organizing issues into epics and user stories
- Tracking progress across multiple sprints
- Generating documentation automatically
- Facilitating backlog refinement sessions
- Communicating status to stakeholders

Related to: Product Owner Interview Agent configuration
Refs: #agile, #product-management, #epic-management

.vibe/skills/product-owner-assistant/scripts/test-wiki.sh

@@ -0,0 +1,59 @@
+#!/bin/bash
+
+# Test script for Gitea wiki functionality
+
+set -e
+
+# Configuration
+SKILL_DIR="/Users/gabrielradureau/Work/Vibe/DanceLessonsCoach/.vibe/skills/product-owner-assistant"
+GITEA_API="https://gitea.arcodange.lab/api/v1"
+OWNER="arcodange"
+REPO="dance-lessons-coach"
+
+# Check if token is available
+if [ -z "$GITEA_API_TOKEN" ] && [ -z "$GITEA_API_TOKEN_FILE" ]; then
+    echo "Error: Gitea API token not configured"
+    echo "Set GITEA_API_TOKEN or GITEA_API_TOKEN_FILE environment variable"
+    exit 1
+fi
+
+# Get token
+if [ -n "$GITEA_API_TOKEN_FILE" ]; then
+    TOKEN=$(cat "$GITEA_API_TOKEN_FILE")
+else
+    TOKEN="$GITEA_API_TOKEN"
+fi
+
+# Test 1: List existing wiki pages
+echo "=== Test 1: Listing existing wiki pages ==="
+curl -s -X GET "${GITEA_API}/repos/${OWNER}/${REPO}/wiki/pages" \
+  -H "Authorization: token ${TOKEN}" \
+  -H "Accept: application/json" | jq '.'
+
+echo ""
+echo "=== Test 2: Create a test wiki page ==="
+# Create test content
+CONTENT="# Test Wiki Page\n\nThis is a test page created at $(date)\n\n- Test item 1\n- Test item 2\n"
+CONTENT_BASE64=$(echo -n "$CONTENT" | base64)
+
+# Create the page
+curl -s -X POST "${GITEA_API}/repos/${OWNER}/${REPO}/wiki/new" \
+  -H "Authorization: token ${TOKEN}" \
+  -H "Content-Type: application/json" \
+  -d "{
+    \"title\": \"TestPage_$(date +%Y%m%d_%H%M%S)\",
+    \"content_base64\": \"${CONTENT_BASE64}\",
+    \"message\": \"Test page creation\"
+  }" | jq '.'
+
+echo ""
+echo "=== Test 3: Get a specific wiki page (if exists) ==="
+# Try to get the home page if it exists
+curl -s -X GET "${GITEA_API}/repos/${OWNER}/${REPO}/wiki/page/Home" \
+  -H "Authorization: token ${TOKEN}" \
+  -H "Accept: application/json" | jq '.' || echo "Home page not found"
+
+echo ""
+echo "=== Wiki API Test Complete ==="
+echo "✅ Wiki functionality is working"
+echo "📚 The Product Owner Assistant can create wiki pages for epics"