Changelog

• 32a4d15 feat(protocol): R5 — protocol version range negotiation (#71)
• 0f0a331 feat(server): Fuzz_Server_E2E + spec-compliant id sanitization on error responses (#68)
• 1473184 feat(server): M2 + M3 + Q41 — operator dignity bundle (#70)
• e8d01d2 feat(server): R2 — capability honesty (advertise only when wired AND non-empty) (#73)
• 6737d3c refactor: E-sweep — delete experimental.concurrency.maxInFlight phantom knob (E1) (#69)
• 1fa7eb8 test(tools): Q60 — golden snapshots pin every tool's input schema (#72)