Squashed 'vendor/ruvector/' content from commit b64c2172

git-subtree-dir: vendor/ruvector
git-subtree-split: b64c21726f2bb37286d9ee36a7869fef60cc6900

crates/rvf/rvf-adapters/ospipe/src/lib.rs

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+//! OSpipe adapter for the RuVector Format (RVF).
+//!
+//! Maps OSpipe's observation-state pipeline onto the RVF segment model:
+//!
+//! - **VEC_SEG**: State vector embeddings (screen, audio, UI observations)
+//! - **META_SEG**: Observation metadata (app name, content type, timestamps)
+//! - **JOURNAL_SEG**: Deletion records for expired observations
+//!
+//! The adapter bridges OSpipe's `StoredEmbedding` / `CapturedFrame` world
+//! (UUID ids, chrono timestamps, JSON metadata) to RVF's u64-id,
+//! field-based metadata model.
+
+pub mod observation_store;
+pub mod pipeline;
+
+pub use observation_store::{ObservationMeta, RvfObservationStore};
+pub use pipeline::{PipelineConfig, RvfPipelineAdapter};