v0.1.0

Added

• Initial public release. IProtocolClient interface and two implementations: FoxgloveClient (Foxglove WebSocket v1, binary + JSON, CDR decoding) and RosbridgeClient (rosbridge v2 JSON over WebSocket, no roslib dependency).
• ProtocolManager factory with URL sanitization (strips ws:///http:// prefixes, trailing :port, validates via URL).
• Per-subscription adaptive throttle driven by JS-thread lag (SubscriptionBandwidth), observable via getSubscriptionStats. The throttle curves themselves are overridable per-client via ProtocolClientOptions.presetOverrides — host applications shipping to a different device profile than the library's default tuning can supply their own bucket curves without forking. BucketDef and ThrottleMode are public types; DEFAULT_PRESETS is exported for consumers building extensions on top of the defaults.
• Per-subscription circuit breaker (CircuitBreaker) with exponential cooldown, manual retry, and disable. Observable via getBreakerState, getBreakerNextRetryAt, onBreakerStateChange.
• Control-priority publish outbox: PublishOptions.priority: 'control' for E-Stop, dead-man's-switch, and gesture-driven publishes that must not be starved by incoming-message parse work.
• publishZeroTwist() convenience for safety-critical disconnect / background paths.
• ensureAdvertised(topic, schemaName) to pre-advertise channels before time-critical first publish.
• Service discovery for both transports: getAvailableServices, onServicesChange.
• Schema templates: getSchemaTemplate(schemaName) derives default JSON from ros2idl, ros2msg, or JSON Schema declarations carried inline by Foxglove WS (returns null for rosbridge, which does not carry schemas inline).
• Diagnostics readers: getMaxLagMs, getLagStats, getLagHistoryCsv, clearLagHistory for consumers building "currently throttled" badges and bug-report exports.
• DEFAULT_PORTS constant: { 'foxglove-ws': 8765, rosbridge: 9090, zenoh: 7447 }.
• Apache 2.0 license, security disclosure process, and contribution guidelines.

Roadmap (not in this release)

• ZenohClient ships as an unimplemented skeleton (every method throws). ProtocolManager.connect throws a clear "Zenoh support is planned for v0.2.0" error for protocol: 'zenoh'. The class is not exported from index.ts in v0.1.0.