Introduce the `series` module to handle time-series data storage and
manipulation. This module includes:
- `RingBuffer`: An efficient ring buffer for storing time-series data
with a configurable lookback.
- `ScalarSeries`: A type-safe series for primitive scalar values (f64,
i64, bool) optimized for performance.
- `ValueSeries`: A fallback series for non-scalar or mixed data types.
- `RecordSeries`: A "Struct of Arrays" implementation for records,
splitting fields into parallel series for efficient access.
Add a new Markdown document detailing the AST node structure as it
evolves through the compiler's different stages. This includes a diagram
illustrating the data flow and relationships between the generic
`Node<K, T>` structure and its specialized forms (`UntypedNode`,
`BoundNode`, `TypedNode`, `AnalyzedNode`). The document explains the
`kind` and `ty` payloads for each stage and their significance.
Also removes a deleted file related to a previous optimization plan and
adds new files for future optimization plans.
Michael Schimmel