apps/server/src/provider/builtInDrivers.ts          |   5 +-
 apps/server/src/usage/UsageService.ts               |  66 ++++----
 apps/server/src/usage/opencodeUsageReader.ts        | 188 -----------------------
 apps/server/src/usage/usageTranscriptReader.test.ts |  50 -------
 packages/provider-core/src/server/usage.ts          |   3 +-
 packages/provider-opencode/src/server/driver.ts     |   8 +-
 packages/provider-opencode/src/server/usage.test.ts |  71 +++++++++
 packages/provider-opencode/src/server/usage.ts      | 258 ++++++++++++++++++++++++++++++++
 8 files changed, 378 insertions(+), 271 deletions(-)