b2c7bbe401
The kernel's ReAct-loop tuning constants (max tool rounds, read/rejection-loop nudge thresholds, feedback issue cap, repo-map top-k/files-per-dir, docs catalog cap, clarification-round cap, review-block confidence/retry cap, default refinement, recovery/intent route budgets) were hardcoded in SessionOrchestrator/ DefaultSessionOrchestrator. Relocated to a new OrchestrationTuning value threaded through the orchestrator constructor, mapped from CorrexConfig.orchestration in Main.kt, parsed in ConfigLoader, written by CorrexConfigWriter. Defaults equal the former constants so an absent [orchestration] section reproduces prior behavior. Startup-load (not hot-reload); pure output-truncation caps left as constants. Vikunja #46 (task 76).