chore: cut CHANGELOG for v0.1.1

CHANGELOG.md

@@ -6,6 +6,31 @@ All notable changes to this project are documented here. The format follows
 
 ## [Unreleased]
 
+## [0.1.1] - 2026-07-30
+
+Bugfix release: a client used concurrently from cold now opens one firmware
+session instead of one per caller. Everything else is documentation.
+
+### Fixed
+
+- Concurrent first use of a `nanokvm.Client` no longer opens a firmware session
+  per caller. `Token()` sampled the token, released the lock, and only then
+  logged in, so goroutines arriving together each ran a full login; login is
+  now serialized behind its own mutex with a token re-check, and callers queued
+  behind an in-flight login reuse its result (#10).
+
+### Documentation
+
+- Day-to-day Claude Code setup, as validated on hardware: an SSH master socket
+  carrying the tunnel (one auth), the dropbear agent-flood gotcha,
+  `ExitOnForwardFailure` and tunnel liveness checks, and the bearer token
+  pulled to a mode-600 file and used by reference everywhere (#9).
+- Capture trails HID input by roughly one frame on firmware 2.4.3, so a
+  screenshot taken immediately after input can come back showing the screen
+  before the input landed. Workaround: end the input batch with a `wait` action
+  of ~100–200 ms, or take a second screenshot (#11).
+- CI, release, and license badges at the top of the README (#12).
+
 ## [0.1.0] - 2026-07-28
 
 Initial public release, validated on real hardware (NanoKVM Beta, firmware