Test every shipping stripping level

[Eli Pinkerton (wallstop)]

Why

Shipping-fidelity CI only tested High managed stripping. It could not catch level-specific AOT root failures in production-shaped players.

What changed

• Add reviewed profiles for Minimal, Low, and Medium stripping.
• Keep the existing High profile identity.
• Generate each player's exact stripping level from its validated profile.
• Build isolated players on the oldest and newest supported Unity editors.
• Run positive and missing-root checks twice from each binary.
• Keep engine stripping disabled until the shipping builder loads.
• Preserve later profile evidence after a caught profile failure.
• Update workflow guards, tests, runbooks, and agent guidance.

How we know

• The script suite passes 518 tests.
• Repository validation, formatting, spelling, actionlint, and yamllint pass.
• The Unity MCP EditMode assembly passes 817 tests.
• The editor remains idle with one clean main-stage scene after testing.
• Final-head CI has 37 successful checks and 5 intentional skips.
• All four Unity jobs pass.
• Both endpoints pass every stripping level and both runtime modes.
• Both performance jobs pass.
• Bugbot reports no final-head issues.
• All review threads are resolved.

Remaining scope

This advances #506 without closing it. Larger message topologies and durable native evidence remain separate work.

Refs #506

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[github-actions]

Performance Numbers

Measured commit: 49c54a4
Trusted reporting code (PR base): af246b5
Workflow run: 33483815309 attempt 1

Benchmark or harness paths changed, so historical deltas are non-comparable:

• scripts/unity/run-ci-tests.ps1
• scripts/unity/validate-il2cpp-profile.ps1

Historical Standalone delta

Delta direction: + is better; - is worse.

Historical delta omitted because benchmark or harness code changed in this pull request.

Current TargetMap evidence

These raw rows are current-run diagnostics. Use fresh bracketed controls before accepting a micro-optimization.

[Standalone] DXM_TARGET_MAP_BENCHMARK scenario=TargetMap_16_Churn keyCount=16 operation=Churn totalOperations=2520000 operationsPerSecond=502439.103 wallClockMs=5015.533 gcAllocations=-1 gcAllocatedBytes=-1 targetMapEntries=16 targetMapCapacity=32 observedInvocations=2540000
[Standalone] DXM_TARGET_MAP_BENCHMARK scenario=TargetMap_16_Hit keyCount=16 operation=Hit totalOperations=76290000 operationsPerSecond=15256611.038 wallClockMs=5000.455 gcAllocations=-1 gcAllocatedBytes=-1 targetMapEntries=16 targetMapCapacity=32 observedInvocations=76310000
[Standalone] DXM_TARGET_MAP_BENCHMARK scenario=TargetMap_16_Miss keyCount=16 operation=Miss totalOperations=81490000 operationsPerSecond=16296921.796 wallClockMs=5000.331 gcAllocations=-1 gcAllocatedBytes=-1 targetMapEntries=16 targetMapCapacity=32 observedInvocations=0
[Standalone] DXM_TARGET_MAP_BENCHMARK scenario=TargetMap_1_Churn keyCount=1 operation=Churn totalOperations=2610000 operationsPerSecond=521464.060 wallClockMs=5005.139 gcAllocations=-1 gcAllocatedBytes=-1 targetMapEntries=1 targetMapCapacity=4 observedInvocations=2630000
[Standalone] DXM_TARGET_MAP_BENCHMARK scenario=TargetMap_1_Hit keyCount=1 operation=Hit totalOperations=75150000 operationsPerSecond=15028648.924 wallClockMs=5000.450 gcAllocations=-1 gcAllocatedBytes=-1 targetMapEntries=1 targetMapCapacity=4 observedInvocations=75170000
[Standalone] DXM_TARGET_MAP_BENCHMARK scenario=TargetMap_1_Miss keyCount=1 operation=Miss totalOperations=80830000 operationsPerSecond=16165445.202 wallClockMs=5000.172 gcAllocations=-1 gcAllocatedBytes=-1 targetMapEntries=1 targetMapCapacity=4 observedInvocations=0
[Standalone] DXM_TARGET_MAP_BENCHMARK scenario=TargetMap_256_Churn keyCount=256 operation=Churn totalOperations=2420000 operationsPerSecond=481895.879 wallClockMs=5021.832 gcAllocations=-1 gcAllocatedBytes=-1 targetMapEntries=256 targetMapCapacity=512 observedInvocations=2440000
[Standalone] DXM_TARGET_MAP_BENCHMARK scenario=TargetMap_256_Hit keyCount=256 operation=Hit totalOperations=71320000 operationsPerSecond=14262674.427 wallClockMs=5000.465 gcAllocations=-1 gcAllocatedBytes=-1 targetMapEntries=256 targetMapCapacity=512 observedInvocations=71340000
[Standalone] DXM_TARGET_MAP_BENCHMARK scenario=TargetMap_256_Miss keyCount=256 operation=Miss totalOperations=79770000 operationsPerSecond=15953834.399 wallClockMs=5000.052 gcAllocations=-1 gcAllocatedBytes=-1 targetMapEntries=256 targetMapCapacity=512 observedInvocations=0
[Standalone] DXM_TARGET_MAP_BENCHMARK scenario=TargetMap_4096_Churn keyCount=4096 operation=Churn totalOperations=2130000 operationsPerSecond=425023.127 wallClockMs=5011.492 gcAllocations=-1 gcAllocatedBytes=-1 targetMapEntries=4096 targetMapCapacity=8192 observedInvocations=2150000
[Standalone] DXM_TARGET_MAP_BENCHMARK scenario=TargetMap_4096_Hit keyCount=4096 operation=Hit totalOperations=61420000 operationsPerSecond=12282582.836 wallClockMs=5000.577 gcAllocations=-1 gcAllocatedBytes=-1 targetMapEntries=4096 targetMapCapacity=8192 observedInvocations=61440000
[Standalone] DXM_TARGET_MAP_BENCHMARK scenario=TargetMap_4096_Miss keyCount=4096 operation=Miss totalOperations=77400000 operationsPerSecond=15478188.123 wallClockMs=5000.585 gcAllocations=-1 gcAllocatedBytes=-1 targetMapEntries=4096 targetMapCapacity=8192 observedInvocations=0
[Standalone] DXM_TARGET_MAP_BENCHMARK scenario=TargetMap_4_Churn keyCount=4 operation=Churn totalOperations=2520000 operationsPerSecond=503973.279 wallClockMs=5000.265 gcAllocations=-1 gcAllocatedBytes=-1 targetMapEntries=4 targetMapCapacity=8 observedInvocations=2540000
[Standalone] DXM_TARGET_MAP_BENCHMARK scenario=TargetMap_4_Hit keyCount=4 operation=Hit totalOperations=75640000 operationsPerSecond=15127988.503 wallClockMs=5000.004 gcAllocations=-1 gcAllocatedBytes=-1 targetMapEntries=4 targetMapCapacity=8 observedInvocations=75660000
[Standalone] DXM_TARGET_MAP_BENCHMARK scenario=TargetMap_4_Miss keyCount=4 operation=Miss totalOperations=82210000 operationsPerSecond=16441770.473 wallClockMs=5000.070 gcAllocations=-1 gcAllocatedBytes=-1 targetMapEntries=4 targetMapCapacity=8 observedInvocations=0
[Standalone] DXM_TARGET_MAP_CONSTRUCTION keyCount=1 wallClockMs=0.000102 operationsPerSecond=9832841.691 gcAllocations=-1 gcAllocatedBytes=-1 targetMapCapacity=4
[Standalone] DXM_TARGET_MAP_CONSTRUCTION keyCount=16 wallClockMs=0.000625 operationsPerSecond=1600000.000 gcAllocations=-1 gcAllocatedBytes=-1 targetMapCapacity=32
[Standalone] DXM_TARGET_MAP_CONSTRUCTION keyCount=256 wallClockMs=0.007750 operationsPerSecond=129032.258 gcAllocations=-1 gcAllocatedBytes=-1 targetMapCapacity=512
[Standalone] DXM_TARGET_MAP_CONSTRUCTION keyCount=4 wallClockMs=0.000210 operationsPerSecond=4770992.366 gcAllocations=-1 gcAllocatedBytes=-1 targetMapCapacity=8
[Standalone] DXM_TARGET_MAP_CONSTRUCTION keyCount=4096 wallClockMs=0.124800 operationsPerSecond=8012.821 gcAllocations=-1 gcAllocatedBytes=-1 targetMapCapacity=8192