Why: Preserve a single Dev entry and independent repository ownership while allowing active feature branches to migrate without losing source or Git state.
Evidence: SELF 29 real Git/Go workspace tests and ordinary component evidence/lock tests passed; detailed RED/GREEN runs are recorded by make evidence in the task card.
Impact: Add fixed cloning, selected-version baselines, development overlays, npm source resolution, and independently preserved legacy snapshots. No other active worktree is modified.
Refs: Versioned dependencies U2/U5; R15; feature/dependency-workspace
Why: Prepare ordinary component workspaces and real module downloads without changing global Git configuration or other feature branches.
Evidence: SELF clean-cache module consumption and real temporary-Git transport tests are recorded by make evidence in the task card, including expected RED and passing GREEN runs.
Impact: Add component identities/source locks and non-secret transport configuration. Existing submodule layout remains supported during migration.
Refs: Versioned dependencies U1/U2; R15; feature/dependency-workspace
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