v0.31.0

What's Changed

• 1233: Implement proof-of-life canary for mutation pipeline at session… by @marinazzio in #1268
• 1269: Fix mutation application to register features before eval to pr… by @marinazzio in #1272
• 1190: Enhance tests for MCP tools: add coverage for response formatti… by @marinazzio in #1271
• 1190: Enhance tests for Evilution configuration and validation: add c… by @marinazzio in #1274
• 1190: Enhance tests across various components: add coverage for edge … by @marinazzio in #1275
• 1278: Ensure mutations run in a sandboxed CWD to prevent pollution of… by @marinazzio in #1281
• 1191: Add regression tests for conditional negation and predicate rep… by @marinazzio in #1282
• 1192: Add tests for nil replacement, string literal handling, and int… by @marinazzio in #1283
• 1193: Add tests to handle missing keys in session data and baseline e… by @marinazzio in #1284
• 1276: Add interaction entry for dual-runtime harness fix and verifica… by @marinazzio in #1285

Full Changelog: v0.30.4...v0.31.0