mod_interface 0.65.1

Protocol of modularity unifying interface of a module and introducing layers.
Documentation
# Task Management

Task tracking for the `mod_interface` crate.

## File Responsibility Table

| Entry | Responsibility |
|-------|----------------|
| `completed/001_fix_use_layer_reexports.md` | Fix `use` keyword in `mod_interface!` failing to re-export child items |
| `backlog/` | Tasks reviewed but not yet promoted to active |
| `completed/` | Tasks that passed validation |

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## Tasks Index

| Order | ID | Advisability | Value | Easiness | Safety | Priority | Status | Executor | Task | Purpose |
|-------|----|--------------|-------|----------|--------|----------|--------|----------|------|---------|
| 1 | 001 | 1944 | 9 | 5 | 3 | 8 || any | [Fix use_layer re-exports]completed/001_fix_use_layer_reexports.md | Fix `use super::layer_a` in `mod_interface!` not propagating child items to parent layers |
| 2 | 002 | 216 | 6 | 6 | 6 | 4 | 📥 | any | [Compile-fail layer tests]backlog/002_compile_fail_layer_boundary_tests.md | Add trybuild compile-fail tests for layer boundary isolation |
| 3 | 003 | 108 | 6 | 3 | 6 | 3 | 📥 | any | [priv use directive]backlog/003_priv_use_visibility.md | Implement `priv use super::child` private-visibility directive |
| 4 | 004 | 108 | 6 | 3 | 6 | 3 | 📥 | any | [Macro re-export]backlog/004_macro_reexport.md | Implement macro re-export via `exposed(crate) use macro_name` directive |

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## Issues Index

| ID | Status | Task ID | Title |
|----|--------|---------|-------|

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## Issues

*No issues recorded.*