perf(size): Reduce Apple symbol analysis memory - #679
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Use slotted dataclasses for the retained symbol, demangle result, and symbol group objects to avoid allocating an instance dictionary for each object.
Share decoded section and module names across results and retain original mangled-name objects instead of duplicate JSON-decoded strings.
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Size Analysis1 component analyzed, 1 component processing iOS Builds
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Reduce memory used by Apple binary symbol analysis by adding slots to high-cardinality symbol records and reusing repeated section, segment, mangled-name, and module strings. Module reuse is thread-local, preserving parallel demangling without shared mutable state.
Production-shaped benchmarks reduced peak memory by 149–445 MB and process RSS by 226–785 MB across representative workloads.