PR #25494 real Linux runtime verification
head: a19862d30ae04fa65901ceeb3f50f85696bc74a7
main: 32ecd71726fee16f335484c1f95cbce126d461f6

1. Actual v0.1.2-preview.20261022.3511 Linux release created database; UI created project and Codex gpt-6.1-sol conversation. Read-only original database query:
[
  [Object: null prototype] { migration_id: 68, name: 'PeerLinks' },
  [Object: null prototype] { migration_id: 69, name: 'PeerLinkFence' },
  [Object: null prototype] {
    migration_id: 70,
    name: 'WaitingLinkRequestIndex'
  }
]
[Object: null prototype] { peer_links: 0 }

2. github/main: vp run dev --home-dir /tmp/pr25494-data --no-seed
[12:23:29.007] INFO (#1): [dev-runner] mode=dev source=worktree /home/user/main serverPort=16733 webPort=8693 baseDir=/tmp/pr25494-data
[12:23:38.977] ERROR (#2): MigrationError: This database's migration history would skip required schema migrations: 68_ShellStopRequestIndex (recorded: PeerLinks), 69_ThreadMessageSearch (recorded: PeerLinkFence), 70_PeerLinks (recorded: WaitingLinkRequestIndex). The migrator skips every id up to the highest recorded id (70), regardless of name. It was probably written by a different build. Start the build that wrote it, or report this migration history so an upgrade path can be added.

3. Exact PR head, same database: vp run dev --home-dir /tmp/pr25494-data --no-seed
[12:23:52.477] INFO (#1): [dev-runner] mode=dev source=default ports serverPort=13773 webPort=5733 baseDir=/tmp/pr25494-data
[12:24:01.784] INFO (#44): Removed empty peer links schema left by a preview build
[12:24:01.823] INFO (#44): Migrations ran successfully
  migrations: [ '68_ShellStopRequestIndex', '69_ThreadMessageSearch' ]
[12:24:02.833] INFO (#6525): Listening on http://127.0.0.1:13773
[
  [Object: null prototype] {
    migration_id: 68,
    name: 'ShellStopRequestIndex'
  },
  [Object: null prototype] {
    migration_id: 69,
    name: 'ThreadMessageSearch'
  }
]
Preview artifacts remaining: []

4. Web UI reopened original conversation, sent another gpt-6.1-sol turn, opened latest diff. File readback:
preview conversation survived
PR upgrade verified

5. Preview CLI linked an actual second preview server with read-only access. PR startup with this database:
[12:33:22.510] ERROR (#2): MigrationError: This database was migrated by a v0.1.2 preview build and still has peer environment links, which this build cannot keep. Start the preview build, unlink every linked environment, then start this build again.
Read-only full-row comparison immediately after refusal passed: stored peer link and all migration-history rows unchanged.

6. Preview CLI: t3 environment unlink --base-dir /tmp/pr25494-linked <actual-environment-id>
Output: Forgot 8851fee7-ebbf-4b8a-b609-163c4a88cd40. Revoke it in that environment's Connections to end its session there.
[12:34:10.275] INFO (#44): Removed empty peer links schema left by a preview build
[12:34:10.296] INFO (#44): Migrations ran successfully
  migrations: [ '68_ShellStopRequestIndex', '69_ThreadMessageSearch' ]
[12:34:11.471] INFO (#6517): Listening on http://127.0.0.1:13773

7. Already upgraded database restart:
[12:34:49.140] INFO (#6512): Listening on http://127.0.0.1:13773
[12:34:49.311] INFO (#6509): V2 orchestration recovery completed

Focused existing checks via Blacksmith: 2 files / 14 tests passed. No source changes. No mocks, fixtures, or demo data used for runtime verification.