Recipe detail page, menu revamp, and UX improvements

- Add recipe detail page (recipe.html) with full ingredients and instructions
- Simplify menu tab: cards show name + description only, click through for full recipe
- Add description field to Recipe model with DB migration
- Add AI-generated descriptions to menu, swap, and import prompts
- Add single dish by description (POST /api/menus/current/recipes)
- Add grocery item delete without pantry add (DELETE /api/grocery/{id}/items)
- Persist grocery checked state server-side (PATCH /api/grocery/{id}/check-item)
- Hash-based tab routing — refresh stays on current tab
- Logo branding in header and favicon
- Dark theme fixes: URL/text inputs, amber accent, muted danger/warning colors
- Markdown rendering in chat (bold, italic, code blocks, lists, headers)
- Fix instruction step splitting for inline-numbered steps (1. 2. 3.)
- Import recipe from URL with JSON-LD structured data + AI fallback

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

1 files changed, 69 insertions, 2 deletions

diff --git a/services/ai_service.py b/services/ai_service.py
index f128b4a..4b54c15 100644
--- a/services/ai_service.py
+++ b/services/ai_service.py
@@ -50,7 +50,8 @@ Respond ONLY with this JSON structure:
       "name": "...",
       "meal_type": "breakfast",
       "ingredients": [{{"name": "...", "quantity": 1.0, "unit": "cup"}}],
-      "instructions": "Step 1... Step 2...",
+      "description": "1-2 sentence description of the dish's flavor and appeal",
+      "instructions": "1. ... 2. ... (4-8 numbered steps, 1-2 sentences each)",
       "time_minutes": 20,
       "serves": 2
     }}
@@ -204,7 +205,8 @@ Respond ONLY with this JSON:
     "name": "...",
     "meal_type": "{meal_type}",
     "ingredients": [{{"name": "...", "quantity": 1.0, "unit": "cup"}}],
-    "instructions": "Step 1... Step 2...",
+    "description": "1-2 sentence description of the dish's flavor and appeal",
+    "instructions": "1. ... 2. ... (4-8 numbered steps, 1-2 sentences each)",
     "time_minutes": 30,
     "serves": 2
   }}
@@ -262,3 +264,68 @@ Be conversational, helpful, and concise. Reference specific ingredients and reci
 
     loop = asyncio.get_running_loop()
     return await loop.run_in_executor(None, lambda: _chat_sync(messages, json_format=False))
+
+
+async def parse_recipe_from_text(text: str) -> dict:
+    """Ask Ollama to parse unstructured recipe text into our standard recipe schema."""
+    user_message = f"""Parse this recipe text and extract structured data.
+
+RECIPE TEXT:
+{text[:4000]}
+
+Respond ONLY with this JSON:
+{{
+  "recipe": {{
+    "name": "...",
+    "meal_type": "dinner",
+    "ingredients": [{{"name": "...", "quantity": 1.0, "unit": "cup"}}],
+    "description": "1-2 sentence description of the dish's flavor and appeal",
+    "instructions": "1. ... 2. ... (4-8 numbered steps, 1-2 sentences each)",
+    "time_minutes": 30,
+    "serves": 2
+  }}
+}}
+meal_type must be one of: breakfast, lunch, dinner, snack"""
+
+    messages = [
+        {"role": "system", "content": settings.system_prompt},
+        {"role": "user", "content": user_message},
+    ]
+    return await _chat(messages)
+
+
+async def generate_single_recipe(description: str, existing_names: list, pantry_context: dict) -> dict:
+    """Generate one recipe matching a user description."""
+    user_message = f"""Suggest ONE recipe based on this description: "{description}"
+
+CURRENT PANTRY:
+{json.dumps(pantry_context["available_ingredients"], indent=2)}
+
+ALREADY IN PLAN (do not suggest these):
+{json.dumps(existing_names, indent=2)}
+
+GUIDELINES:
+- Match the description as closely as possible
+- Do NOT limit yourself to only pantry ingredients
+- Under 60 minutes
+- Must not be any dish already in the plan
+
+Respond ONLY with this JSON:
+{{
+  "recipe": {{
+    "name": "...",
+    "description": "1-2 sentence description of the dish's flavor and appeal",
+    "meal_type": "dinner",
+    "ingredients": [{{"name": "...", "quantity": 1.0, "unit": "cup"}}],
+    "instructions": "1. ... 2. ... (4-8 numbered steps, 1-2 sentences each)",
+    "time_minutes": 30,
+    "serves": 2
+  }}
+}}
+meal_type must be one of: breakfast, lunch, dinner, snack"""
+
+    messages = [
+        {"role": "system", "content": settings.system_prompt},
+        {"role": "user", "content": user_message},
+    ]
+    return await _chat(messages)