Composed method counters team effects and actual ratio publication

RE-798. Reproduce with python3 scripts/analyze_qvm_stat_composition.py; focused validation: cargo xtask test-group stat-composition. Machine report.

The opt-in resolver interface preserves existing captured defaults. The new source composition executes279720 and279586 with actual283085/283166/283488 children, using corrected reentry and explicit child-word synchronization. Independent models apply method and same-team mutations before deriving each recipient ratio, covering self aliases and excluded aggregate fields. Awards285227 and leaderboard283622 remain captured. Positive divisor scan cost and complete stat lifecycle/native parity remain bounded.

Original executable/native runtime and complete Linux/macOS Rust/Bevy/Solari acceptance remain unverified.