network.init() no longer panics when D-Bus is unavailable (logs warning
instead). This allows go test to run in the nix build sandbox.
checkState() now calls computeState() which returns the target state
without triggering page navigation (which requires OpenGL). Tests call
computeState() directly, avoiding the SIGSEGV from gl.GenVertexArrays.
7 regression tests for state machine, all passing.
State machine now uses DOWNLOADING_ASSETS before READY. Downloads closing
the DownloadDone channel signals checkState() to proceed. Download failure
sets downloadFailed flag which prevents READY. Audio files moved from
~/.local/share/rhemawave/audio to ~/.radiantwave/audio/.
Regression tests in application_test.go (linux build-tagged due to
network package D-Bus init). Version 0.6.
NeilClack