fix: update template URLs in getting-started.sh

- Change template clone URL from pezkuwichain/{template}-template
  to pezkuwichain/pezkuwi-sdk-{template}-template
- All three template repos now accessible:
  - pezkuwi-sdk-minimal-template
  - pezkuwi-sdk-teyrchain-template
  - pezkuwi-sdk-solochain-template
- Update WORKFLOW_PLAN.md with current progress

scripts/getting-started.sh

@@ -34,7 +34,7 @@ clone_and_enter_template() {
         printf "\n✅︎ ${template}-template directory already exists. -> Entering.\n"
     else
         printf "\n↓ Let's grab the ${template} template from github.\n"
-        git clone --quiet https://github.com/pezkuwichain/${template}-template.git ${template}-template
+        git clone --quiet https://github.com/pezkuwichain/pezkuwi-sdk-${template}-template.git ${template}-template
     fi
     cd ${template}-template
 }