fix: Replace dummy plausible secrets with clear placeholders

gandalf_automationrequested to merge
refactor-rocketchat-config into develop

Summary

  • Replace RocketChat config fallback values that looked like real credentials with obviously-invalid placeholders
  • Prevents false positives from security scanners
  • Matches the placeholder style already used in .env.testing

Context

The previous fallback values (DaMHvraiQbNBxi7W5, VZhTOE20q3Xe9xTgA9QqjbQAYxYEhAfkUZpAm7xrQgd) matched RocketChat's credential format, triggering security scanner alerts despite never being valid credentials.

Verified these were never functional against https://openhive.chat (returns 401).

Test plan

  • Verify fallback values are obviously placeholders
  • Confirm placeholder style matches .env.testing
  • CI passes

Merge request reports