Update: sys info printouts

[alexandraBara]

Summary

Only printing SKU/platform when populated, to avoid confusion when None. These items are input from user not information acquired from system.

Test plan

• pytest test/unit
• pytest test/functional (if applicable)
• pre-commit run --all-files

Checklist

• Added/updated tests (or explained why not)
• Updated docs/README if behavior changed
• No secrets or credentials committed

Before:

(venv) alexbara@ausalexbara02:~/node-scraper_public$ node-scraper run-plugins MemoryPlugin
  2026-04-24 07:53:11 CDT       INFO               nodescraper | Log path: ./scraper_logs_ausalexbara02_2026_04_24-07_53_11_AM
  2026-04-24 07:53:11 CDT       INFO               nodescraper | System Name: ausalexbara02
  2026-04-24 07:53:11 CDT       INFO               nodescraper | System SKU: None
  2026-04-24 07:53:11 CDT       INFO               nodescraper | System Platform: None
  2026-04-24 07:53:11 CDT       INFO               nodescraper | System location: SystemLocation.LOCAL
  2026-04-24 07:53:11 CDT       INFO               nodescraper | Initializing connection manager for InBandConnectionManager with default args 

After:

(venv) alexbara@ausalexbara02:~/node-scraper_public$ node-scraper run-plugins MemoryPlugin
  2026-04-24 07:54:43 CDT       INFO               nodescraper | Log path: ./scraper_logs_ausalexbara02_2026_04_24-07_54_43_AM
  2026-04-24 07:54:43 CDT       INFO               nodescraper | System Name: ausalexbara02
  2026-04-24 07:54:43 CDT       INFO               nodescraper | System location: SystemLocation.LOCAL
  2026-04-24 07:54:43 CDT       INFO               nodescraper | Initializing connection manager for InBandConnectionManager with default args