dsh-context-guard v0.1.0

First stable release

Long-session token control for DeepSeek Harness.

• Prunes oversized tool results before the next model request.
• Retains a compact preview for normal tool output.
• Keeps each recall result intact for exactly one following model step, then resumes pruning.
• Preserves original results in DSH session history for targeted recovery.

Validated with unit tests and a DSH forced-recall integration test.