feat: Add Hall of Fame leaderboard backed by a dedicated results table

feat: Update model references to MiniCPM5 and adjust related documentation and tests for transformers 5.x compatibility

Refactor local model configurations and update tests

feat: Update model routing and local provider to support multi-sponsor tiers and auto-class resolution

feat: Implement early termination for the judge in Twenty Sprouts game and enhance event handling

feat: Implement audience-only secret badge for Twenty Sprouts game

feat: implement winner celebration overlay and judging mechanics

feat: Replace llama.cpp backend with in-process transformers backend for local GPU inference

feat: Implement llama.cpp backend for local inference with GGUF models

Merge remote-tracking branch 'origin/main' into worktree-scenarios

feat: make every scenario arena-grade with a competition contract

feat: Implement well-known typed fields for verdicts in output models

feat(roadmap): add comprehensive arena roadmap outlining sessions, winners, and leaderboard features

feat: update agent personas and scheduling in YAML configurations; enhance event handling and memory deduplication in core logic

feat(observability): add OpenTelemetry logging/tracing/metrics foundation

feat(core): add resilient loop and shared blackboard

feat: Enhance model routing and deployment flexibility

feat: add the-steeped spy-game scenario (word-pair bluff)

docs: add as-built Fishbowl UI architecture page

feat: add Fishbowl UI presenter layer and say-vs-think engine support

feat: add Fishbowl UI ADR and implementation plan for Gradio presenter layer

feat: add optional mem0 cloud backend for memory index and update documentation

feat: unify model catalogue and self-hosted routing

feat: update model endpoint URLs and enhance documentation with mermaid diagrams

feat: add architecture review and scenario authoring documentation

feat: mem0 as a layered, derived semantic memory index

feat: official MCP SDK as an optional tool transport

feat: Instructor-validated structured output on the live path

feat: LiteLLM gateway routing profiles to Modal-served small models

feat: env-gated Postgres event store via SQLAlchemy (layered)

feat: update setup instructions and dependencies for uv integration

Refactor code structure for improved readability and maintainability

feat: phase 2 architecture — manifest system, structured output, salience memory, SQLite ledger, observer

feat: scaffold hackathon agent theater