`deploy.sh` references the old repo layout and cannot run

[arnoweiss]

deploy.sh appears to have been carried over unchanged from the previous (internal) repository layout. It references directories, config/manifest templates that no longer exis. As a result it cannot run to completion against the current samples (ams-javalin-shopping, ams-spring-boot-shopping, ams-cap-bookshop).

Broken references

1. java_dir=java-security-ams (line 3) — no such directory. Current sample dirs are ams-javalin-shopping, ams-spring-boot-shopping, ams-cap-bookshop. (spring-security-ams exists only under legacy-v3-samples/.)
2. spring_dir=spring-security-ams (line 4) — not at repo root; only exists as legacy-v3-samples/spring-security-ams.
3. Missing config templates — sed'd/read but present nowhere:
   • $folder/ias-config-multi-tenant.json.template (line 69)
   • $folder/ias-config-single-tenant.json.template (line 71)
   • $folder/sms-config.json.template (line 94)
4. Missing manifest templates — copied by prepare_java_deployment, neither exists:
   • $java_dir/manifest-multi-tenant.yml (line 147)
   • $java_dir/manifest-single-tenant.yml (line 187)
5. cf push -f "$folder"/manifest.yml (line 102) — no manifest.yml exists in any sample dir, and the "copy template → manifest.yml" chain that would create it is itself broken (see point 4).
6. The script reads and writes a different set of keys than the ones present in the current vars.yml:
   PROVIDER_SUBACCOUNT_SUBDOMAIN: (lines 149, 166) --> PROVIDER_SUBDOMAIN:
SUBSCRIBER_SUBACCOUNT_SUBDOMAIN: (lines 150, 182) --> not present