…57)

Replace dill-based binary serialization with RocketPy's native
JSON-based .rpy format (RocketPyEncoder/RocketPyDecoder), making
flight export and import architecture-, OS-, and Python-version-
agnostic.

Add POST /flights/upload to import .rpy files by decomposing them
into Environment, Motor, Rocket and Flight models persisted through
the standard CRUD pipeline.

Add GET /flights/{id}/notebook to export a flight as a Jupyter
notebook that loads the .rpy file via load_from_rpy.

Closes #56, closes #57.

Made-with: Cursor

- Fix implicit string concatenation in notebook source (Pylint W1404)
- Update FlightImported.message to say ".rpy file" instead of "binary"
- Add 10 MB upload size guard with HTTP 413 on POST /flights/upload
- Extract tanks for LIQUID/HYBRID motors in _extract_motor to satisfy
  MotorModel validation (new _extract_tanks and _to_float helpers)
- Add comment explaining default_fins schema fallback
- Tighten test assertion on import success message
- Add pre-yield cache_clear() in environments test fixture

Made-with: Cursor

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

- Add HTTP 413 to /upload route OpenAPI responses schema
- Move grain_fields construction inside SOLID|HYBRID match branch
  to avoid AttributeError on LIQUID/GENERIC motors
- Add test for oversized .rpy upload returning HTTP 413

Made-with: Cursor

- Guard from_rpy against non-dict JSON payloads (e.g. [] or "foo")
  that would AttributeError instead of hitting the 422 path
- Change notebook to resimulate=True so flight.all_info() has
  computed outputs available after loading an .rpy with
  include_outputs=False

Made-with: Cursor

Consistent with all other tank-kind fields — these attributes can
be Function objects in RocketPy, so they need the same scalar
extraction to avoid Pydantic validation failures.

Made-with: Cursor

Exposes structured drawing geometry that mirrors rocketpy.Rocket.draw(),
so clients can redraw a rocket using the same shape math rocketpy uses
without server-side rendering or duplicated geometry logic in the UI.

Response carries per-surface shape_x/shape_y arrays, body tube segments,
motor patch polygons (nozzle, chamber, grains, tanks, outline), rail
button positions, sensors, t=0 CG/CP, and drawing bounds. Coordinates
are already transformed into the draw frame rocketpy uses.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Align MotorModel and MotorTank with RocketPy's actual constructor
requirements so invalid motors are rejected at the API boundary with a
clear error rather than crashing deep inside RocketPy at simulate time.

- MotorModel.validate_dry_inertia_for_kind: SOLID / LIQUID / HYBRID
  motors in RocketPy require dry_inertia with no default. Only
  GenericMotor accepts (0, 0, 0). Reject the default tuple for every
  kind except GENERIC with a message the user can act on.
- MotorTank.discretize: change to Optional[int] = 100 to match the
  RocketPy Tank classes' default. Forms can now omit the field and still
  submit successfully.
- stub_motor_dump fixture: use dry_inertia=[0.1, 0.1, 0.1] so tests that
  override motor_kind to SOLID / LIQUID / HYBRID still pass the new
  validator without each having to add a dry_inertia override locally.

RocketPy's rocket.draw() does not draw a combustion chamber for
GenericMotor because _MotorPlots._generate_combustion_chamber reads
grain-only attributes (grain_initial_height, grain_outer_radius, etc.)
that GenericMotor lacks — it only emits a nozzle. Users who populate
chamber_radius / chamber_height / chamber_position then saw no chamber
in the jarvis playground.

Add a GenericMotor branch in RocketService._build_motor_geometry that
constructs an equivalent rectangular chamber patch from the chamber_*
fields. Vertex ordering mirrors _generate_combustion_chamber so the
patch flows through _generate_motor_region for outline assembly the
same way a SolidMotor chamber does.

Patch is emitted with role='chamber', flowing through the existing
drawingMotorSchema + GeometryRocket renderer without frontend changes.

…export' into drop-22apr