docs: update incremental benchmarks (3.3.1)

[github-actions]

Automated incremental benchmark update for 3.3.1 from workflow run #397.

[greptile-apps]

Greptile Summary

This is an automated documentation-only PR generated by the CI workflow that appends incremental benchmark results for release 3.3.1 to generated/benchmarks/INCREMENTAL-BENCHMARKS.md.

Key changes:

• Adds two summary table rows for 3.3.1 (native and wasm engines) with correct percentage deltas relative to 3.3.0.
• Updates the "Latest results" prose section to reflect 3.3.1 figures.
• Prepends the raw 3.3.1 JSON benchmark object to the embedded INCREMENTAL_BENCHMARK_DATA comment block.

Notable highlights from the data:

• Native full build improved by ~22% (3.0s → 2.4s) despite a 3% growth in file count (429 → 442).
• WASM full build marginally increased by ~2% (4.3s → 4.4s).
• Native 1-file rebuild improved by ~17% (417ms → 346ms).
• Import resolution speedup ratio improved from ~2.7x to ~2.9x.

All percentage changes, rounded display values, and the speedup ratio were cross-verified against the raw JSON data and are accurate.

Confidence Score: 5/5

• Safe to merge — documentation-only change with no code modifications.
• All benchmark values are internally consistent: percentage deltas match the raw JSON figures, rounded display values are correct, the speedup ratio (2.9x = 25.8ms / 9ms) is accurate, and the format follows the established pattern of all prior entries.
• No files require special attention.

Important Files Changed

Filename	Overview
generated/benchmarks/INCREMENTAL-BENCHMARKS.md	Automated benchmark update adding 3.3.1 results (native + wasm rows, latest section, and JSON data block); all percentage changes, rounded values, and speedup ratio are internally consistent with the raw JSON data.

Sequence Diagram

sequenceDiagram
    participant W as CI Workflow (#397)
    participant CG as codegraph CLI
    participant DB as SQLite DB
    participant S as benchmark script
    participant MD as INCREMENTAL-BENCHMARKS.md

    W->>CG: codegraph build (full, native)
    CG->>DB: parse 442 files, store hashes
    CG-->>W: fullBuildMs=2369 (native)
    W->>CG: codegraph build (no-op, native)
    CG->>DB: check hashes, skip unchanged
    CG-->>W: noopRebuildMs=11
    W->>CG: codegraph build (1-file, native)
    CG->>DB: rebuild single modified file
    CG-->>W: oneFileRebuildMs=346
    W->>CG: repeat for wasm engine
    CG-->>W: fullBuildMs=4363 wasm
    W->>S: aggregate metrics → JSON
    S->>MD: prepend 3.3.1 JSON entry
    S->>MD: update summary table rows
    S->>MD: update "Latest results" section
    W->>W: commit + open PR #550

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