v0.3.1

Added

• qhook send CLI: Send test events to a running server without curl. Supports inline JSON, file input, and auto-detects source type/port from config.
• qhook doctor CLI: Pre-production readiness check. Validates config, database connectivity, handler/workflow endpoint reachability, and security settings.
• Echo endpoint: Built-in /_echo endpoint returns request headers and body as JSON. Eliminates the need for a mock server during development.
• Local development guide: New docs/guides/local-development.md covering echo endpoint, test events, tunnels (GitHub CLI, LocalStack, cloudflared).
• Remote config loading: qhook start -c s3://..., -c gs://..., -c az://..., or -c https://... loads config from AWS S3, GCS, Azure Blob, or HTTP. Polls every 30s for changes (ETag-based). Invalid config is rejected with current config preserved and logged. Public endpoints only (private bucket support tracked in #26).
• qhook inspect CLI: Show an event's full lifecycle — payload, matched jobs with status/attempts, workflow runs. Debug event flow in one command.
• qhook send --dry-run: Show which handlers and workflows would match an event without creating jobs.
• qhook init --template: Scaffold config from templates (github, stripe, sns, cron).
• JSON Schema: docs/schema.json for editor autocomplete and validation. Add # yaml-language-server: $schema=https://totte-dev.github.io/qhook/schema.json to qhook.yaml.
• Database schema guide: docs/guides/database-schema.md — full table/column/index reference.
• Config overlay (--env): qhook start --env production merges qhook.production.yaml on top of qhook.yaml. Also loads .env.production for environment variables. Supports QHOOK_ENV environment variable. qhook init now generates qhook.local.yaml alongside qhook.yaml.
• qhook tail: Real-time event and job stream in the terminal. Filter by --source or --status. Color-coded output.
• qhook export events: Export events as JSONL for portability between environments. Supports --source, --event-type, --since, --until filters.

Changed

• Dependency reduction: Replaced regex with regex-lite (smaller binary, no Unicode tables). Trimmed tokio features from full to only required features (rt-multi-thread, macros, sync, signal, net, time). ~1MB binary size reduction.
• OTLP exporter: Switched from gRPC (tonic) to HTTP JSON transport. Set OTEL_EXPORTER_OTLP_ENDPOINT to an HTTP endpoint.

Removed

• gRPC output: Removed type: grpc handler support and tonic/prost dependencies. gRPC added significant binary size (~3MB) for limited use cases — HTTP handlers with Envoy or gRPC-gateway cover the same scenarios. If demand exists, gRPC support will be available in the Cloud version.
• Helm chart: Removed charts/qhook/. qhook is a single-binary application and doesn't benefit from Helm's complexity. For Kubernetes, use a simple Deployment manifest with the Docker image directly.