fix: Fix PostCSS config and Dockerfile

1. Rename postcss.config.js to postcss.config.cjs
   - Fixes CommonJS syntax in ES module project
   - Allows build to complete successfully

2. Remove --production flag from Dockerfile
   - Install ALL dependencies including sharp
   - Sharp required for Astro image optimization
   - Fixes sharp missing error

Both fixes enable successful Docker build and favicon to work.

.astro/collections/products.schema.json

@@ -0,0 +1,168 @@
+{
+  "$ref": "#/definitions/products",
+  "definitions": {
+    "products": {
+      "type": "object",
+      "properties": {
+        "id": {
+          "type": "string"
+        },
+        "name": {
+          "type": "string"
+        },
+        "nameEn": {
+          "type": "string"
+        },
+        "slug": {
+          "type": "string"
+        },
+        "description": {
+          "type": "string"
+        },
+        "shortDescription": {
+          "type": "string"
+        },
+        "keywords": {
+          "type": "array",
+          "items": {
+            "type": "string"
+          }
+        },
+        "seoContent": {
+          "type": "string"
+        },
+        "image": {
+          "type": "string"
+        },
+        "specifications": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "properties": {
+              "label": {
+                "type": "string"
+              },
+              "value": {
+                "type": "string"
+              },
+              "unit": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "label",
+              "value"
+            ],
+            "additionalProperties": false
+          }
+        },
+        "features": {
+          "type": "array",
+          "items": {
+            "type": "string"
+          }
+        },
+        "applications": {
+          "type": "array",
+          "items": {
+            "type": "string"
+          }
+        },
+        "certifications": {
+          "type": "array",
+          "items": {
+            "type": "string"
+          }
+        },
+        "productTables": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "properties": {
+              "tableName": {
+                "type": "string"
+              },
+              "headers": {
+                "type": "array",
+                "items": {
+                  "type": "string"
+                }
+              },
+              "rows": {
+                "type": "array",
+                "items": {
+                  "type": "array",
+                  "items": {
+                    "type": "string"
+                  }
+                }
+              }
+            },
+            "required": [
+              "tableName",
+              "headers",
+              "rows"
+            ],
+            "additionalProperties": false
+          }
+        },
+        "faq": {
+          "type": "array",
+          "items": {
+            "type": "object",
+            "properties": {
+              "question": {
+                "type": "string"
+              },
+              "answer": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "question",
+              "answer"
+            ],
+            "additionalProperties": false
+          }
+        },
+        "relatedProductIds": {
+          "type": "array",
+          "items": {
+            "type": "string"
+          }
+        },
+        "schemaData": {
+          "type": "object",
+          "properties": {
+            "brand": {
+              "type": "string"
+            },
+            "manufacturer": {
+              "type": "string"
+            },
+            "material": {
+              "type": "string"
+            },
+            "category": {
+              "type": "string"
+            }
+          },
+          "additionalProperties": false
+        },
+        "$schema": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "id",
+        "name",
+        "nameEn",
+        "slug",
+        "description",
+        "image"
+      ],
+      "additionalProperties": false
+    }
+  },
+  "$schema": "http://json-schema.org/draft-07/schema#"
+}