feat: Add Survival & Preparedness category with 3 tiers

Essential (~138 MB):
- Food for Preppers, FOSS Cooking, Based.Cooking

Standard (~3.6 GB, includes Essential):
- Canadian Prepper: Winter Prepping & Bug Out Roll
- Gardening Q&A, Cooking Q&A

Comprehensive (~21 GB, includes Standard):
- Urban Prepper, Canadian Prepper: Prepping Food & Bug Out Concepts
- Learning Self-Reliance, iFixit Repair Guides, DIY Q&A

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

collections/kiwix-categories.json

@@ -80,6 +80,117 @@
           ]
         }
       ]
+    },
+    {
+      "name": "Survival & Preparedness",
+      "slug": "survival",
+      "icon": "IconShieldCheck",
+      "description": "Emergency preparedness, self-sufficiency, food storage, and practical survival skills.",
+      "language": "en",
+      "tiers": [
+        {
+          "name": "Essential",
+          "slug": "survival-essential",
+          "description": "Core food preparation and cooking guides. Lightweight text-based resources to get started.",
+          "recommended": true,
+          "resources": [
+            {
+              "title": "Food for Preppers",
+              "description": "Recipes and techniques for food preservation and preparation",
+              "url": "https://download.kiwix.org/zim/other/zimgit-food-preparation_en_2025-04.zim",
+              "size_mb": 98
+            },
+            {
+              "title": "FOSS Cooking",
+              "description": "Quick and easy cooking guides and recipes",
+              "url": "https://download.kiwix.org/zim/zimit/foss.cooking_en_all_2025-11.zim",
+              "size_mb": 24
+            },
+            {
+              "title": "Based.Cooking",
+              "description": "Simple, practical recipes from the community",
+              "url": "https://download.kiwix.org/zim/zimit/based.cooking_en_all_2025-11.zim",
+              "size_mb": 16
+            }
+          ]
+        },
+        {
+          "name": "Standard",
+          "slug": "survival-standard",
+          "description": "Video guides for winter survival, bug-out gear, plus gardening and cooking Q&A. Includes Essential.",
+          "includesTier": "survival-essential",
+          "resources": [
+            {
+              "title": "Canadian Prepper: Winter Prepping",
+              "description": "Video guides for winter survival and cold weather emergencies",
+              "url": "https://download.kiwix.org/zim/videos/canadian_prepper_winterprepping_en_2025-11.zim",
+              "size_mb": 1340
+            },
+            {
+              "title": "Canadian Prepper: Bug Out Roll",
+              "description": "Essential gear selection for your bug-out bag",
+              "url": "https://download.kiwix.org/zim/videos/canadian_prepper_bugoutroll_en_2025-08.zim",
+              "size_mb": 975
+            },
+            {
+              "title": "Gardening Q&A",
+              "description": "Stack Exchange Q&A for growing your own food",
+              "url": "https://download.kiwix.org/zim/stack_exchange/gardening.stackexchange.com_en_all_2025-12.zim",
+              "size_mb": 923
+            },
+            {
+              "title": "Cooking Q&A",
+              "description": "Stack Exchange Q&A for cooking techniques and food safety",
+              "url": "https://download.kiwix.org/zim/stack_exchange/cooking.stackexchange.com_en_all_2025-12.zim",
+              "size_mb": 236
+            }
+          ]
+        },
+        {
+          "name": "Comprehensive",
+          "slug": "survival-comprehensive",
+          "description": "Full prepper video library plus repair guides and DIY skills. Includes Standard.",
+          "includesTier": "survival-standard",
+          "resources": [
+            {
+              "title": "Urban Prepper",
+              "description": "Comprehensive urban emergency preparedness video series",
+              "url": "https://download.kiwix.org/zim/videos/urban-prepper_en_all_2025-11.zim",
+              "size_mb": 2240
+            },
+            {
+              "title": "Canadian Prepper: Prepping Food",
+              "description": "Long-term food storage and survival meal preparation",
+              "url": "https://download.kiwix.org/zim/videos/canadian_prepper_preppingfood_en_2025-09.zim",
+              "size_mb": 2160
+            },
+            {
+              "title": "Canadian Prepper: Bug Out Concepts",
+              "description": "Strategies and planning for emergency evacuation",
+              "url": "https://download.kiwix.org/zim/videos/canadian_prepper_bugoutconcepts_en_2025-11.zim",
+              "size_mb": 2890
+            },
+            {
+              "title": "Learning Self-Reliance",
+              "description": "Prepping, survival skills, beekeeping, and homesteading",
+              "url": "https://download.kiwix.org/zim/videos/lrnselfreliance_en_all_2025-12.zim",
+              "size_mb": 3970
+            },
+            {
+              "title": "iFixit Repair Guides",
+              "description": "Step-by-step repair guides for electronics, appliances, and vehicles",
+              "url": "https://download.kiwix.org/zim/ifixit/ifixit_en_all_2025-12.zim",
+              "size_mb": 3570
+            },
+            {
+              "title": "DIY & Home Improvement Q&A",
+              "description": "Stack Exchange Q&A for home repairs and construction",
+              "url": "https://download.kiwix.org/zim/stack_exchange/diy.stackexchange.com_en_all_2025-12.zim",
+              "size_mb": 1900
+            }
+          ]
+        }
+      ]
     }
   ]
 }