Add env var fallback for KiBot text variables

- rev/rev_pcb: Use KIBOT_VAR_rev if set, else git describe
- name: Use KIBOT_VAR_name if set, else extract from filename

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

kibot-ci.yml

@@ -137,7 +137,7 @@ image:
 
   boms:
     - client=$(echo $CI_PROJECT_PATH | cut -d'/' -f3 | sed -r 's/\<./\U&/g')
-    - proj=$(echo $CI_PROJECT_NAME | tr -d '0123456789' | tr '-' ' ' | sed -r 's/\<./\U&/g')
+    - proj=$(echo $CI_PROJECT_NAME | tr -d '0123456789' | tr '-' ' ' | cut -d ' ' -f 2)
     - desc_suffix=$(echo $client $proj)
     - url="https://gitlab.com/api/v4/projects/${DIGI_API_PRJ_ID}/packages/generic/digikey_api/0/token_storage.json"
     - |