feat(admin): multi-select with shift+drag for common bulk operations

1 files changed, 16 insertions, 44 deletions

diff --git a/building_guide/items.md b/building_guide/items.md
index e03622d..6280993 100644
--- a/building_guide/items.md
+++ b/building_guide/items.md
@@ -162,52 +162,24 @@ heal_value: 5         # positive = heal, negative = damage
 eat_message: "You eat the bread. Warm and satisfying."
 ```
 
-## MadeFrom — Item Combinations
+## Item Combinations
 
-Define what items combine to make this item. Used by the `use` command. Combinations run through the production system — players are prompted "How many?" and the action loops with a timer.
+Item-on-item combinations use the `craft:` block (same as all other recipes). Define the
+output item with `type: ""` (or omit it) and the ingredients. See `recipes.md` for the full
+craft reference — byproducts, multi-item ingredient slots, message variables, and multi-step
+assembly.
 
-```yaml
-name: bread dough
-color: "DE"
-ticks: 2
-made_from:
-  - items: [pot_of_flour]
-    quantity: 1
-    byproducts: [empty_pot]
-  - items: [bucket_of_water, pitcher_of_water]
-    quantity: 1
-    byproducts: [empty_bucket, empty_pitcher]
-```
-
-Each entry is an ingredient slot. Multiple `items` means any of them works. The first matching item found in inventory is consumed.
-
-`ticks` controls how many game ticks each production cycle takes (default 2).
-
-### Byproducts
-
-`byproducts` is a list matching the `items` list by index. When `bucket_of_water` (items[0]) is consumed, `empty_bucket` (byproducts[0]) is returned to inventory. When `pitcher_of_water` (items[1]) is consumed, `empty_pitcher` (byproducts[1]) is returned instead.
-
-Use `""` for items that produce no byproduct:
-
-```yaml
-made_from:
-  - items: [pot_of_flour, loose_flour]
-    quantity: 1
-    byproducts: [empty_pot, ""]   # pot returns empty_pot, loose flour returns nothing
-  - items: [bucket_of_water]
-    quantity: 1
-    byproducts: [empty_bucket]
-```
-
-Omit `byproducts` entirely if no items in that slot produce a byproduct:
+Quick example — filling a bucket:
 
 ```yaml
-made_from:
-  - items: [pot_of_flour]
-    quantity: 1
-    byproducts: [empty_pot]       # returns empty_pot
-  - items: [salt]
-    quantity: 1                        # no byproducts field — salt is consumed entirely
+name: bucket of water
+craft:
+  ticks_per_cycle: 0
+  ingredients:
+    - items: [vial_of_water, jug_of_water]
+      quantity: 1
+      byproducts: [empty_vial, empty_jug]
+    - items: [empty_bucket]
+      quantity: 1
+  success_message: "You pour the %i1 into the %i2."
 ```
-
-See also `recipes.md` for station-based recipes.