refactor(monorepo): reorganización lógica + renames + SDDs + split CHANGELOG

Reorganización física de crates/:
- core/ (mezclaba 6 propósitos) se divide en protocol/, init/, runtime/, compat/
- shared/ (3 crates) se redistribuye en protocol/ e init/
- lapaloma (sub-módulo de ui_engine) se promueve a modules/pineal/

Renames de proyectos:
- shipote → shuma (runtime de sandboxes)
- nouser → akasha (explorador de Mónadas)
- yahweh → nahual (motor GPUI, antes ui_engine/)
- lapaloma → pineal (data-viz agnóstica)

Fraccionamiento UI → core agnóstico:
- vista-core (DeckState + snap, 175 LOC, 5 tests verdes)
- barra-core (Task + render_html + sanitize, 90 LOC, 5 tests verdes)
- vista-web y barra-web ahora son thin DOM bindings

Documentación nueva:
- 16 SDDs por subdirectorio (≤80 LOC c/u): protocol/init/runtime/compat
  + 10 módulos + apps/
- docs/STATUS.md con cifras reales por proyecto
- docs/ROADMAP.md con plan a finalización (6 hitos, ~6-8 semanas)
- CHANGELOG.md particionado en docs/changelog/<proyecto>.md (7 buckets)

Automatización:
- scripts/reorg.py — script idempotente que: git mv directorios, renombra
  package names, recomputa path = refs, reescribe imports rust, actualiza
  workspace Cargo.toml. Soporta --dry-run.
- scripts/split-changelog.py — particiona CHANGELOG por componente.

Validación:
- cargo check --workspace pasa (124 crates + 2 nuevos cores).
- 10 tests adicionales (5 en vista-core + 5 en barra-core) verdes.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

crates/modules/pineal/umbrella/src/lib.rs

@@ -0,0 +1,53 @@
+//! `pineal` — paraguas re-export.
+//!
+//! Para **prototipos** que quieren probar varios módulos a la vez
+//! sin agregar 8 dependencias a `Cargo.toml`. En producción
+//! preferir importar directamente los crates hoja (`pineal-core`,
+//! `pineal-cartesian`, …) para que el linker descarte lo no
+//! usado y los tiempos de compilación bajen.
+//!
+//! Las features mapean 1:1 a cada sub-crate:
+//!
+//! ```toml
+//! [dependencies]
+//! pineal = { workspace = true, default-features = false,
+//!              features = ["cartesian", "stream"] }
+//! ```
+
+#![forbid(unsafe_code)]
+
+#[cfg(feature = "core")]
+pub use pineal_core as core;
+
+#[cfg(feature = "render")]
+pub use pineal_render as render;
+
+#[cfg(feature = "cartesian")]
+pub use pineal_cartesian as cartesian;
+
+#[cfg(feature = "stream")]
+pub use pineal_stream as stream;
+
+#[cfg(feature = "mesh")]
+pub use pineal_mesh as mesh;
+
+#[cfg(feature = "financial")]
+pub use pineal_financial as financial;
+
+#[cfg(feature = "polar")]
+pub use pineal_polar as polar;
+
+#[cfg(feature = "heatmap")]
+pub use pineal_heatmap as heatmap;
+
+#[cfg(feature = "treemap")]
+pub use pineal_treemap as treemap;
+
+#[cfg(feature = "flow")]
+pub use pineal_flow as flow;
+
+#[cfg(feature = "phosphor")]
+pub use pineal_phosphor as phosphor;
+
+#[cfg(feature = "export")]
+pub use pineal_export as export;