docs: apply fleet-template (16-artifact scaffold)

Adds missing standard artifacts:
- README.md (if missing)
- AGENTS.md (AI agent contract)
- PLAN.md (current sprint)
- STATUS.md (where we are)
- DEVELOPMENT.md (dev workflow)
- DEPLOYMENT.md (deploy procedure)
- TESTING.md (test strategy)
- DECISIONS.md (ADR index + templates)
- .github/CODEOWNERS
- .github/workflows/ci.yml

Preserves all existing artifacts.

Refs: RugMunchMedia/fleet-template

templates/etsy-product.json

@@ -0,0 +1,21 @@
+{
+  "name": "Etsy Product",
+  "description": "Extract product details from Etsy listing pages",
+  "site": "etsy.com",
+  "category": "ecommerce",
+  "icon": "🧶",
+  "url_pattern": "*://www.etsy.com/listing/*",
+  "schema": {
+    "name": "etsy_product",
+    "base_selector": "[data-listing-id]",
+    "fields": [
+      {"name": "title", "selector": "h1", "type": "text"},
+      {"name": "price", "selector": ".wt-text-title-01", "type": "text", "transform": "float"},
+      {"name": "rating", "selector": ".wt-display-inline-flex .wt-text-body-01", "type": "text", "transform": "float"},
+      {"name": "review_count", "selector": ".wt-display-inline-flex a", "type": "text", "transform": "int"},
+      {"name": "shop_name", "selector": ".wt-text-body-01 a[href*='/shop/']", "type": "text"},
+      {"name": "image_url", "selector": ".carousel-image img", "type": "attribute", "attribute": "src"},
+      {"name": "description", "selector": "[data-section-id='description']", "type": "text"}
+    ]
+  }
+}