[trac41799]

Closes the local-database loop: a zero-dependency SQLite ladder plus delivery hardening, with a green from-empty E2E.

SQLite ladder (no Docker, no cloud)

• New nextjs-sqlite-vercel preset (database: sqlite, no MCP requirement).
• Scaffold branches on it: provider = "sqlite" + file:./dev.db, no supabase client/lib, no compose file, local-first .env.
• Provision records a sqlite target without touching Docker; verification's DB check is provider-aware (to_regclass for Postgres, per-model COUNT probes for SQLite — db execute prints no rows there).
• Green from-empty E2E: provision (sqlite target) → scaffold (committed) → agent done → merged → install → db push → all 19 checks pass, including database reachable + schema applied and E2E runtime. ~6 min.

Delivery hardening (from real-run evidence)

• HANDOFF_*.md excluded from delivery commits (it leaked into the deliverable, same class as .acc/).
• Scaffold output is now committed (commit_scaffold_output, exactly the scaffold's file list): agent worktrees branch from the base branch, and uncommitted scaffold output was invisible to every agent — an agent literally reported "no package manifest exists in this worktree". History now reads empty → scaffold → agent → merge.
• Post-merge guard: files a merge delivered must be present in the working tree, else a loud conflict (fail-closed over silent loss).
• Scaffold .gitignore now covers .worktrees/.

Also fixed on the way

• render_compose_yml used \-continuations that strip indentation → flattened YAML with a duplicate volumes: key, caught only by the live Docker test. Rewritten as a raw string + structural assertions.
• Preserved run artifacts moved out of the repo (they polluted the web test glob); git status clean.

Gates

Rust 242 lib + 42 integration (3 real-agent tests ignored), Web 341, tsc/lint clean.

Still pending

Live container boot (Docker engine was down; self-skipping live test + exact commands in LOCAL-DATABASE.md) and the cloud-migration proof (EXTERNAL-VERIFICATION.md).

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Project	Deployment	Actions	Updated
source-forge	Ready	Preview	Sep 30, 2026 10:51pm UTC