mcp-nexus

## ADDED Requirements ### Requirement: Docker runtime SHALL resolve startup entrypoint deterministically The runtime image SHALL execute the startup script through an absolute path and ensure the script is executable in the runtime layer. #### Scenario: Platform starts container with non-default working directory - **WHEN** the platform launches the container with a working directory other than `/app` - **THEN** the runtime command still resolves the startup script and container boot does not fail with path lookup errors. ### Requirement: Entrypoint SHALL emit actionable startup diagnostics The startup script SHALL log major startup phases and bootstrap policy so operators can diagnose crash loops from runtime logs alone. #### Scenario: Container startup begins - **WHEN** entrypoint execution starts - **THEN** logs include the selected database bootstrap mode and whether bootstrap will run, retry, or skip. ### Requirement: Database bootstrap SHALL support policy-based failure handling The startup script SHALL support required, best-effort, and skip bootstrap policies with configurable retries. #### Scenario: Required mode exhausts retries - **WHEN** `DB_BOOTSTRAP_MODE=required` and bootstrap fails for all configured retries - **THEN** the script exits with non-zero status and logs that startup was blocked by bootstrap failure. #### Scenario: Best-effort mode exhausts retries - **WHEN** `DB_BOOTSTRAP_MODE=best-effort` and bootstrap fails for all configured retries - **THEN** the script logs a warning and continues to launch the server process. #### Scenario: Bootstrap is skipped - **WHEN** `DB_BOOTSTRAP_MODE=skip` or `DATABASE_URL` is not set - **THEN** the script skips `prisma db push`, logs the reason, and launches the server process.