feat(P14a): v0.8→v1.0 data migration (REQ-066, C-07) + orca upgrade (REQ-115, C-25, C-27)
internal/migration/migrate.go: Migratev08tov11 (flat→multi-ns, schema
migration, CA import to step-ca, config.hcl preserve). internal/cli/
upgrade.go: orca upgrade --to (thin wrapper, R-017 binding cutover
with C-25 post-verify+rollback, C-27 orca user creation, --import-ca,
--dry-run). Tests: detect/migrate/dry-run/idempotent, cutover verify/
rollback, user creation.
---ci---
project: orca
phase: 14a
milestone: v0.11
status: execute
---/ci---
Jon Chery
9a28dc907b