[Bug] can not start zcode

提交前确认 · Pre-submission checklist

• 我已搜索过现有 issue，确认这不是重复 / I searched existing issues and confirmed this isn't a duplicate.
• 我已阅读 CONTRIBUTING.md / I've read CONTRIBUTING.md.

问题类别 · Category

稳定性 / 崩溃 · Stability / Crash

涉及的 Agent 框架 · Agent framework

ZCode Agent（自研）

严重程度 · Severity

阻塞使用 · Blocking (无法使用核心功能 / core function unusable)

复现频率 · Reproducibility

必现 · Always

问题描述 · Description

can not start after upgrade to 3.12.3
{
"schemaVersion": 1,
"startupId": "4fb1326f-80f4-47fb-bef4-c097fca192fb",
"attemptId": "7e36343f-e0c4-449f-9959-f56031fc12d1",
"sequence": 18,
"startedAt": 1789635343895,
"updatedAt": 1789635347252,
"phase": "failed",
"migration": {
"kind": "upgrade",
"executedCount": 1,
"committedCount": 0
},
"currentMigration": {
"kind": "upgrade",
"executedCount": 1,
"committedCount": 0,
"lastAppliedMigrationId": "0018_session_input_failed_status"
},
"migrationBaselines": [
{
"databaseId": "tasks-index",
"databaseKind": "tasks-index",
"lastAppliedMigrationId": "0003_official_glm_selection"
},
{
"databaseId": "4011046b18b8ad99866b2ee2228218eab5e206c8f016e2110d9b96f10d7d7939",
"databaseKind": "session",
"lastAppliedMigrationId": "0018_session_input_failed_status"
}
],
"failedPhase": "preparing_session_storage",
"errorCode": "sql_failed",
"sqliteCode": 787,
"systemCode": "ERR_SQLITE_ERROR",
"migrationId": "0020_provider_model_selection",
"disk": [
{
"scopeId": "5b3feea8a5e2106a56f1f2041c9da362adafb3224ac54c8c1790bbd24cc31b65",
"observedAvailableDropPeakBytes": 274432,
"minAvailableBytes": 81766518784,
"quality": "complete",
"sampledAt": 1789635345904
}
]
}

复现步骤 · Steps to reproduce

restart

期望表现 · Expected behavior

open zcode

实际表现 · Actual behavior

got error

ZCode 版本 · ZCode version

v3.12.3

设备 / 系统 / 浏览器 · Device / OS / Browser

mac os 27

截图 / 录屏 / 日志 · Screenshots / Recordings / Logs

No response

Reproduce the restart failure in ZCode v3.12.3 on macOS 27 and capture the startup logs. Trace the upgrade path around migration 0020_provider_model_selection and the preparing_session_storage phase, comparing the session baseline at 0018_session_input_failed_status. Done means ZCode opens after restart and the upgrade completes without sql_failed or SQLite 787.