AstroCartography Correction

Added

• Geodetic Analysis Expansion: added explicit immutable body snapshots,
  full house figures, static overlays, segmented inverse angle loci, supplied-
  place comparisons, and fixed-reference transit timing in their owning
  Python modules. Canonical/qualified minor-body and comet identities retain
  aliases, frames and known epochs; no catalog sweep, REST route, download
  behavior, facade export, or package version change is introduced.
• Nonlinear Geodetic Uncertainty Diagnostics: analytic whole-box branch
  checks precede bounded deterministic sampling, circular sample arcs and
  linearization residuals. These sampled diagnostics are not error bounds.
• Coverage-Aware Fixed Geodetic Timing: explicit frozen tropical anchors,
  directed aspect branches, stationary touches, connected orb windows with
  repeated passes, disjoint SPK coverage and reduction padding, finite budgets,
  and visible partial/incomplete states. Times are JD UT1, not civil UTC.
• Typed Geodetic Location Metadata: added immutable GeodeticLocation
  input and geodetic_chart_at_location. Latitude kind, datum/reference
  frame, decimal-year coordinate epoch, ellipsoidal height, and source are
  retained as metadata; supported latitude kinds remain numerically
  pass-through. Geocentric latitude is refused until an explicit conversion is
  selected.
• Detailed Geodetic Equivalents Receipt: added an immutable chart-backed
  result that records each body's source tropical longitude, selected-zodiac
  longitude, geographic equivalent, chart UT/TT, and ayanamsa provenance. The
  existing dictionary-returning wrapper remains compatible.
• Caller-Controlled Geodetic Sensitivity: added analytic local MC/ASC
  derivatives and first-order L1 response estimates from caller-supplied input
  uncertainties. Results are explicitly not guaranteed error bounds, and
  uncertainty ranges crossing calculation-domain boundaries are refused.
• Physical-Horizon Research Specification: separated a possible
  frame-aware geometric/apparent horizon capability into
  wiki/05_research/geodetic/GEODETIC_PHYSICAL_HORIZON_SPEC.md; no physical
  horizon calculation or transport route is introduced.

Breaking Changes

• Direct Sidereal Geodetic Charts Require An Explicit Offset:
  geodetic_chart(..., zodiac="sidereal") no longer silently assumes a zero
  ayanamsa when ayanamsa_deg is omitted. Pass the selected offset explicitly;
  0.0 remains valid when the caller intends coincident lanes.
• Geodetic Tropical Lane Refuses An Ayanamsa: moira.geodetic entry points
  and all four /v1/geodetic/* routes now reject a tropical request that
  carries an ayanamsa, instead of resolving the same contradiction two ways —
  the direct route previously honoured a nonzero ayanamsa_deg, while the
  chart-backed route silently discarded ayanamsa_system. Transport reads
  presence as the declaration, so zodiac: "tropical" with
  ayanamsa_deg: 0.0 is now HTTP 422. No shipped client sends either field
  on a tropical request.
• Geodetic Poles Are Refused, Not Extrapolated: geodetic_asc,
  geodetic_chart and REST admission reject latitudes within
  _POLAR_REFUSAL_MARGIN_DEG (1e-6) of |90|. At a geographic pole the two
  tangent roots of the Ascendant are exactly equidistant, so the horizon no
  longer singles out a rising ecliptic degree; the module previously answered
  with a mathematical extrapolation.

Fixed

• Geodetic Undefined Geometry And Angle Ranges: refuse coincident planes
  and zero-rising-rate branch ties, including non-quadrant meridional ties;
  sensitivity checks the entire uncertainty region before linearizing.
  Normalize half-open angle results even at floating-point wrap/overflow edges.
• Fixed-Target Transit Orb Windows: search connected boundaries over the
  bounded study span rather than assuming two days is sufficient. Bulk fixed-
  target scans share canonical samples and preserve the existing public/REST
  mover admission; exact roots at study boundaries and stationary touches are
  explicit numerical corrections.
• Vertex / Anti-Vertex Branch Selection (#23): Python and native house
  helpers now select the western prime-vertical/ecliptic intersection by its
  actual local hour angle. Comparing ecliptic longitude with ARMC - 90°
  could swap the two points at low southern latitudes, including the reported
  Lima chart. Meridional ties retain the principal root; the existing
  near-equator sentinel and conventional geographic-pole frame remain explicit.
• Native Ascendant Branch Parity: native asc_from_armc now follows the
  Python rising-intersection doctrine, including bounded sine/cosine evaluation,
  exact-pole and floating-point ties, and half-open longitude normalization.
  This also corrects native local-angle reductions that could choose the
  setting intersection at polar latitudes.
• One Ascendant Branch Doctrine: moira.houses and moira.geodetic
  carried two divergent copies of _asc_from_armc. Both now delegate to
  moira._angles, which now selects the rising ecliptic/horizon intersection
  by the sign of its local-hour-angle vertical rate. This replaces a
  coordinate-frame mismatch that compared ecliptic longitude with
  ARMC + 90° (a right ascension) and could select the setting root at high
  latitudes. Exact-pole ties remain deterministic for low-level house callers;
  public geodetic calculations refuse the undefined polar margin. The shared
  result is normalized to [0°, 360°).
• Sidereal Geodetic Ascendant Frame: geodetic ARMC was derived from the
  sidereal MC and then treated as a tropical equatorial frame. The engine now
  derives ARMC from the zodiac-independent tropical meridian and expresses the
  sidereal Ascendant as (tropical ASC - ayanamsa) mod 360.
• Geodetic Ayanamsa Epoch: geodetic_chart_from_chart and
  geodetic_equivalents_from_chart passed the vessel's TT into
  moira.sidereal.ayanamsa, which is contracted for UT and performs its own
  UT→TT step, so the epoch shifted twice. Measured error is 2.98e-08° at
  J2000 and 3.90e-06° at 100 CE — 3.9× the 1e-6° longitude covenant.
  Obliquity correctly remains a TT computation. moira.vedic already used the
  UT scale; geodetic was the only outlier.
• Geodetic Equivalents Double Ayanamsa: geodetic_equivalents_from_chart
  fed the vessel's tropical positions into an inversion helper that reads a
  nonzero ayanamsa as "these inputs are sidereal", so its sidereal lane
  returned a meridian displaced by the full ayanamsa — 23.853° at J2000.
  Both lanes now return the one zodiac-independent geographic anchor, matching
  the REST service path, which converted positions first and was never wrong.

Changed

• wiki/02_standards/GEODETIC_BACKEND_STANDARD.md is amended to 0.5: lane
  exclusivity, rising-branch policy, the UT/TT epoch split, polar refusal,
  caller-supplied latitude semantics, obliquity limits, and result provenance.
• Explicit Geodetic Input and Result Contracts: geodetic latitude is
  documented as caller-supplied and passed through without conversion or an
  inferred datum; Earth obliquity is guarded to [22°, 25°]; direct
  GeodeticChart construction now enforces the result invariants. Chart-backed
  chart results retain Julian Days, obliquity model identities, and the
  sidereal ayanamsa system/time-scale provenance.
• Geodetic and Astrocartography Latitude Boundary: documented that
  moira.geodetic records but does not convert caller latitude, while
  moira.astrocartography explicitly owns its WGS-84 geodetic/geocentric
  conversion for horizon sampling and fixed-star zenith geometry.
• Stable Shared Ascendant Evaluation: _asc_from_armc now evaluates the
  equivalent horizon equation with sine and cosine terms instead of explicitly
  evaluating tan(latitude), while preserving the rising-root selection and
  deterministic exact-pole tie.

Validation

• Added tests/unit/test_house_angle_branches.py: the Lima public-API
  regression, independent Cartesian prime-vertical/west and horizon/east
  assertions, near-coincident planes, Python/native grids across both
  hemispheres and three obliquities, meridional/polar ties, near-equator
  compatibility, and native-reduction/Python-fallback branch consistency.
• Added tests/unit/test_angles_branch_doctrine.py (shared doctrine identity,
  horizon and eastern-intersection witnesses, half-open normalization, polar
  tie) and extended tests/unit/test_geodetic.py plus
  tests/server/test_server_geodetic_routes.py with lane-policy, polar, epoch
  and lane-parity covenants, including service-layer refusals that hold when
  transport validation is bypassed.
• Added a separate altitude-equation root-search oracle across hemispheres,
  date-line wrapping, and near-polar inputs, plus direct-vessel and
  chart-provenance validation tests.
• Expanded the independent root oracle across the admitted obliquity range,
  seven longitudes, and both hemispheres; added longitude-turn metamorphic
  checks, typed-location/provenance tests, detailed-equivalents lane receipts,
  and finite-difference verification of analytic sensitivity derivatives.