[d-oit]

Optimizes reciprocalRankFusion in src/lib/search/fusion.ts.

• Precomputed rank contributions table (256 ranks) in Float64Array to eliminate repeated floating-point divisions.
• Eliminated intermediate object cloning on insertion into the fusion map, cloning only the final top-K items.
• Replaced Intl-based localeCompare with binary string comparison for deterministic ID tie-breaking.
• Converted forEach loops and slice-map chains to index-based iteration and pre-sized array allocations.
  Benchmark throughput measured via pnpm run bench:measure:
• Disjoint 100-item rankings: 21,702.90 hz -> 27,109.81 hz (~25% speedup)
• Half-overlapping 100-item rankings: 27,517.61 hz -> 32,941.73 hz (~20% speedup)

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PR created automatically by Jules for task 10197246288444786388 started by @d-oit

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Project	Deployment	Actions	Updated
do-knowledge-studio	Ready	Preview, v0	Nov 4, 2026 2:16am UTC

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[github-actions]

Blocked merge diagnosis — blocked
⏳ Check run(s) still in progress: ["Codacy Static Code Analysis","Dependency Advisory Audit","Secret Detection","Infrastructure as Code Security","Shell Script Security Analysis","Trivy Filesystem Security Scan","labeler","Detect Changes","Stale Base Guard","Diagnose Blocked Merge State","Performance Benchmarks (advisory)","commitlint","Analyze (actions)","Analyze (javascript-typescript)","Analyze (python)"]

[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

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0 new issues

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🟢 Metrics 0 complexity · 0 duplication

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Duplication	0

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