FeatureBoard 0.6.0

full release notes: 17 commits since v0.5, 161→189 tools, 158→630 tests, organized as gitMode + account-wide global config, release automation, parallel test runner + perf caches, agent heartbeats + live board banner, timeline accuracy, privacy egress inventory, manifest prompts parity, board-vs-chat eval evidence + multi-model test variants.