* fix(sdk-android): add @JvmOverloads to Uatu.start
Java callers can now invoke start(application) without supplying a
Configuration, matching the Kotlin default-arg ergonomics.
* feat(agent): add protocol_version to HELLO handshake
ProtocolVersion=1 lives on Message and is set by Hello(). Server.Accept
rejects mismatches with a clear error. SDK upgrades that don't change
the wire format keep the same protocol_version; bump on breaking changes.
* test(agent): assert protocol_version in Hello round-trip
* feat(sdk-android): send protocol_version=1 in HELLO
Mirrors agent.ProtocolVersion on the Go side. Bump in lockstep with
the Go constant when the wire format breaks.
* chore(sample-app): pull @uatu/spec from npm next tag
Replaces the file: dep. Copy-paste users can now npm install against
the registry. The release workflow publishes pre-release tags to
npm dist-tag 'next', so the sample tracks the latest rc without
manual version bumps. Lockfile currently resolves to 0.0.1-rc3.
* refactor(docs): inline pandoc build into Makefile, drop scripts dir
* fix(agent): wait for deadline watcher before returning
readWithDeadline's watcher goroutine could clobber the conn's read
deadline with time.Unix(1, 0) after the main function reset it to zero.
When the Accept ctx was canceled shortly after Accept returned, the
watcher raced with close(done) in select and sometimes picked ctx.Done()
even though we were already done reading, leaving the conn unusable for
the next read (instant i/o timeout on step 1 snapshot).
Synchronize on the watcher's exit before resetting the deadline so it
can never override the reset.
* test(agent): cover readWithDeadline race on Accept ctx cancel
Drives Accept with a short-timeout ctx, cancels it right after Accept
returns, then does a Snapshot. Reliably fails without the readWithDeadline
synchronization fix (watcher goroutine overwrites the deadline to past).
Accept waits for an SDK HELLO then hands back a Conn. Conn.Snapshot
sends a PAUSE, blocks on the matching STATE (id-correlated), and
leaves the SDK paused until Release sends RESUME. Conn.Close sends
GOODBYE best-effort.
v0.1 supports one client at a time; transport is left to the caller
so tests can use TCP loopback while production wires via adb reverse
to localabstract:uatu-agent.
pj