Expose every order component as its own entity and prepare for release

Each cost line is now an entity rather than an attribute: subtotal, box price,
add-ons, tax and delivery fee, plus a total and free-delivery-remaining for the
open order, a delivery-day sensor, and a binary sensor that turns off at the
cutoff. Entities share a base class and declare a scope, so a description
states only the field it reads.

Also parses the driver tip, Bounty savings and the free-delivery threshold. The
threshold is carried across orders because the progress bar only renders on
carts that have not met it.

Adds LICENSE, hacs.json, a CI workflow, a pre-publish audit script, and a test
that cross-checks every entity's translation_key against both translation
files. Manifest URLs now point at GitHub rather than a private forge.

custom_components/freshharvest/strings.json

@@ -22,21 +22,47 @@
       "next_delivery": {
         "name": "Next delivery"
       },
+      "delivery_day": {
+        "name": "Delivery day"
+      },
       "next_delivery_total": {
         "name": "Next delivery total"
       },
-      "next_delivery_addons_total": {
+      "next_delivery_subtotal": {
+        "name": "Next delivery subtotal"
+      },
+      "next_delivery_box_price": {
+        "name": "Next delivery box price"
+      },
+      "next_delivery_add_ons": {
         "name": "Next delivery add-ons"
       },
+      "next_delivery_tax": {
+        "name": "Next delivery tax"
+      },
+      "next_delivery_delivery_fee": {
+        "name": "Next delivery fee"
+      },
       "next_delivery_items": {
         "name": "Next delivery items"
       },
       "open_order_delivery": {
         "name": "Open order delivery"
       },
+      "open_order_total": {
+        "name": "Open order total"
+      },
+      "open_order_free_delivery_remaining": {
+        "name": "Open order free delivery remaining"
+      },
       "shop_window": {
         "name": "Shopping window"
       }
+    },
+    "binary_sensor": {
+      "order_open": {
+        "name": "Order open"
+      }
     }
   }
 }