v0.10.0

comparison view (percent-normalized): render comparison rows as percent-normalized lines, fit the y-axis to visible line extremes, and show the main symbol in the legend
cursor history status: add cursor history status to the data layer
FinShare cursor-based bar loading: add cursor-based paged bar loading for the FinShare source
capability-based source routing: implement capability-based source routing, plus a V1 source capability declaration contract and transportable error codes
visible retry progress: surface visible retry progress while loading K-line data
register tradingview and baostock sources: register the tradingview and baostock sources via the V1 provider
aggregation source session memory: remember the aggregation source tab selection within a session
polish aggregation source dialog: refine the aggregation source dialog interactions

fit comparison y-axis: fit the comparison view y-axis to visible line extremes so lines stay in view
resolve legend rows by identity: resolve comparison legend rows by symbol identity so the main symbol renders correctly
unify fetch failures: unify data source fetch failures into the KLineChartError contract

reorganize data layer by domain: reorganize the data layer by domain folders and document its purpose, responsibilities and structure
remove legacy DataBuffer adapter: remove the legacy setFetcher date adapter from DataBuffer
migrate gotdx to V1 provider: migrate the gotdx source to the V1 provider abstraction
update dependencies and dev docs: update dependencies and development documentation conventions