Fix skill: don't hardcode image range end number

The CDN image numbering isn't fixed at 04 — increment from 00
until a 404 instead.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: tyeth

.agents/skills/add-component-v1/SKILL.md

@@ -251,10 +251,10 @@ The definition.json must validate against `components/i2c/schema.json`. Key cons
    - **USE THIS:** `https://cdn-shop.adafruit.com/original/<PID>-NN.jpg`
    - NOT: `https://cdn-shop.adafruit.com/970x728/<PID>-NN.jpg`
    - NOT: `https://cdn-shop.adafruit.com/640x480/<PID>-NN.jpg`
-   - Where `NN` is the image number (`01` = default, `00`-`04` are common variants)
+   - Where `NN` is the image number (`01` = default, `00` and up are common variants)
    - If you scraped a URL from the product page or API, replace the resolution part
      (e.g. `970x728`, `640x480`) with `original` before downloading
-3. **Check all available shots** by testing `00` through `04` — pick the slight-angle / isometric
+3. **Check all available shots** by incrementing from `00` until you get a 404 — pick the slight-angle / isometric
    close-up of the breakout board with a plain background (this is the standard Adafruit product
    photo style, typically image `00`). Avoid lifestyle shots, shots with other boards or
    accessories in the frame, or images where the board is very small in the frame.
@@ -390,7 +390,7 @@ import urllib.request, io, os
 
 # 1. Download original resolution source (best quality)
 PID = '<product_id>'
-IMAGE_NUM = '01'  # try 00-04 to find best shot
+IMAGE_NUM = '01'  # try 00, 01, 02, ... until 404 to find best shot
 url = f'https://cdn-shop.adafruit.com/original/{PID}-{IMAGE_NUM}.jpg'
 data = urllib.request.urlopen(url).read()
 img = Image.open(io.BytesIO(data))