Why: consuming backend main (#115 kernel-transcript + #116 EXT-14 dependency inversion) moves backend pins for agent-native (3b92cb63) and agent-squad (8bbf850, Squad #49 nested native bump); the umbrella check-pins requires Dev's top-level pins and every container gitlink to agree, and Dev's agent-command pin must follow backend's EXT-14 lib bump (5c6dd0c, lib PRs #4/#5). Evidence: Backend #116 (6337cd8) and #117 (5544a03) vet-and-test CI success, merged as 8157e68/31965fd; Squad #49 merge 8bbf850 records deps/agent-native=3b92cb63 (ls-tree verified); umbrella lint-boundaries pre-verified green at 6337cd8 (77 edges, negative probe ok); full make test recorded on the task card at the final head. Impact: gitlink-only changes (modules/backend, deps/agent-squad, deps/agent-command, deps/agent-native); no source edits in the umbrella. Refs: Backend #115/#116/#117; Squad #49; agent-command lib #4/#5; proposal 2026-10-09-ext-g1-b1-b3 (EXT-14).
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