docs: acknowledge fullstackdev0110 and bugman-007 contributions

[Lightheartdevs]

Summary

• Add Glexy (fullstackdev0110) to contributor acknowledgements for PR Fix dream-cli chat port initialization and harden validate.sh env handling #92 (chat port init fix + validate.sh hardening)
• Add bugman-007 to contributor acknowledgements for PR Parallelize health checks in dream status for 5-10x speedup #93 (parallel health checks in dream status with benchmark/test scripts)

Test plan

• Verify README renders correctly on GitHub

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