slice_and_print

        For a more comprehensive pipeline with validation and profile auto-detection,
        use ``run_quick_print``. For custom slicer overrides, use ``run_reslice_and_print``.
        Automatically analyzes bed adhesion and adds brim/raft when needed
        based on model geometry, material warp tendency, and printer type.
        This adhesion intelligence only activates when no custom profile is
        supplied.

        Pre-print validation gate: mesh inputs (.stl/.obj/.3mf/.step/.glb)
        run through Kiln's full validation pipeline before slicing —
        format check, watertight check, auto-repair, printability scoring
        (0-100), bed-fit, and material checks.  Designs that fail the gate
        are blocked before reaching the printer; auto-repaired meshes are
        sliced from the repaired path.  Pass ``skip_validation=True`` to
        bypass (e.g. for already-validated meshes or pre-sliced 3MFs).

        Args:
            input_path: Path to the 3D model file (STL, 3MF, STEP, etc.).
            printer_name: Target printer name.  Omit for the default printer.
            profile: Path to a slicer profile/config file.
            printer_id: Optional printer model ID for bundled profile
                auto-selection (e.g. ``"prusa_mini"``).
            material: Filament material (e.g. ``"PLA"``, ``"ABS"``).  Affects
                automatic brim/raft decisions.
            metadata: Optional dict of pass-through fields.  When
                kiln-pro (https://kiln3d.com) is installed it
                consumes keys here to generate a printable
                assembly manual alongside the print, surfacing it
                under ``response["assembly_manual"]``.  Without
                kiln-pro the metadata is silently ignored.
                Recognised keys (all optional):
                ``assembly_json``, ``manual_output_dir``,
                ``manual_design_name``, ``manual_branding``,
                ``manual_co_brand_name``, ``manual_languages``,
                ``manual_cover_language``.  Multi-language and
                co-brand are kiln-pro Business+ features
                (https://kiln3d.com/pricing).
            skip_validation: Bypass the pre-print validation gate.
                Defaults to False — designs are pre-tested for
                printability before they reach the printer.  Set to
                True only when the caller has already validated the
                mesh (e.g. ``validate_and_prepare`` was just called)
                or when the input is a pre-sliced 3MF the validator
                can't introspect.

        Combines ``slice_model``, ``upload_file``, and ``start_print`` into
        a single action.

        Branch on ``print_start`` — one field, three values, and the
        nested ``print`` block carries the identical pair so the two
        halves cannot disagree:

        - ``"started"``: the printer, asked after the command, is printing.
        - ``"accepted"``: the command was sent and not refused, and the
          machine has not confirmed it is running.  Normal during the
          start-up transient (homing, AMS load, calibration).  Call
          ``printer_status()`` to watch it start.
        - ``"failed"``: the printer, asked after the command, is idle or
          errored — it did not take the job.

        ``success`` is ``False`` only for ``"failed"``.