Add Dumas JSON array iterator node

README.md

@@ -39,6 +39,11 @@
   - Output: `INT`
   - Returns the length of a JSON array.
 
+- `Dumas JSON Array Iterator`
+  - Inputs: `json_input`, `index`, `mode`
+  - Outputs: `item`, `current_index`, `total_items`
+  - Returns the current array item and position, with `mode` set to `fixed`, `incr`, or `decr`.
+
 All nodes live in the `Dumas/JSON` category.
 
 ## Installation
@@ -77,6 +82,14 @@ settings.render.width
 {"enabled": true, "retries": 3}
 ```
 
+`Dumas JSON Array Iterator` clamps to valid bounds:
+
+```text
+fixed -> use index as-is
+incr  -> use index + 1
+decr  -> use index - 1
+```
+
 ## Roadmap
 
 This repo is intended to grow into a broader set of Dumas-branded generic utility nodes, including JSON helpers and adjacent data-manipulation tools.