Select file and slice identity once before Android, Apple and Harmony
classification. Keep directory/link facts in source inventory and Apple
anatomy rather than deriving code roles, runtime hints or bridges from them.
Preserve occurrence order, multiplicity and existing unavailable facts.
Adapt @flyl1u's proposal and public CLI/stdio MCP controls from PR #3830,
extending the controls and structural fix to Apple and slice/link semantics.
Validation: 80 focused checks, build, check:fast and docs:check pass.
Four package controls fail before the fix. 72 tiny completed source cost
tasks preserve all regular-file control replies and projection IDs byte
for byte. No heavy profiling, target or real deep-provider execution;
full agent/public-task costs and published npm package unverified.
Fixes#3349
morluto