DimSim: reduce bridge logging verbosity

[Viswa4599]

Problem

Bridge server and physics logs are noisy during normal operation. While step logging is throttled, other logs (sensor data, colliders, snapshots) can be verbose.

Proposed Solution

• Add --verbose / --quiet flag to DimSim CLI
• Default quiet: only errors + key state transitions (connect, disconnect, init)
• Verbose: current behavior (debugging)
• Expose via DimSimConfig(verbose=False) in Python

Context: dimos team feedback on PR #1390. Minor.

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Synced from DIM-778 by summer