Feat/cs/remove alloc

[ReagentX]

• Performance boost
  • Remove unnecessary alloc in read_types()
  • Inline some hot functions
  • Use faster data structure for seen_embedded_types cache

[Copilot]

Pull Request Overview

This PR optimizes TypedStreamDeserializer by removing redundant allocations, inlining hot functions, and replacing the HashSet cache with a Vec for tracking embedded types.

• Swapped seen_embedded_types: HashSet<usize> for a Vec<usize>
• Added #[inline(always)] to several small readers
• Refactored read_number and read_types to avoid cloning and reduce indirection

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/deserializer/typedstream.rs	Replaced HashSet with Vec, inlined methods, and refactored number/type readers
src/deserializer/read.rs	Added #[inline(always)] to byte- and pointer-readers

Comments suppressed due to low confidence (1)

src/deserializer/typedstream.rs:161

• The comment on read_unsigned_int incorrectly says "signed integer"; it should reference "unsigned integer" to match the function's purpose.

    /// Reads a signed integer from the stream, advancing the position.