Full native ast coverage

[alex-clickhouse]

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[Copilot]

Pull request overview

This PR expands Native-format AST generation/traversal so that protocol/metadata bytes (headers, serialization kinds, terminal blocks, etc.) are represented in the AST and included in byte-coverage checks.

Changes:

• Add explicit AST nodes for Native block headers, column metadata, serialization metadata, and per-column “prefix” protocol nodes.
• Track and surface terminal “end block” bytes via ParsedData.trailingNodes, and include them in UI traversal and coverage analysis.
• Strengthen Native coverage testing by asserting full byte coverage (and adding a protocol-revision coverage matrix).

Reviewed changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/store/store.ts	Ensures “expand all” includes newly added Native AST nodes + trailing nodes.
src/core/types/ast.ts	Extends Native AST-related types with explicit nodes and trailingNodes.
src/core/decoder/test-helpers.ts	Updates byte coverage analysis to include Native header/meta/prefix/trailing nodes.
src/core/decoder/native-protocol.test.ts	Adds byte-coverage assertions and a terminal-block coverage test.
src/core/decoder/native-decoder.ts	Emits full-fidelity AST for Native protocol metadata and exposes trailing terminal-block nodes.
src/core/decoder/coverage.integration.test.ts	Adds a protocol-revision × query coverage matrix expecting full coverage.
src/components/HexViewer/HexViewer.tsx	Switches Native highlighting/selection traversal to AST-driven header/meta/prefix/trailing nodes.
src/components/AstTree/AstTree.tsx	Switches Native block/column metadata rendering to AST-driven nodes and displays trailing nodes.
README.md	Documents protocol version selection and testing stack.

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