feat(ci): gunbc_ci affected gate selection from CIWorkflowDag + diff (#103)

INVARIANTS.md

@@ -347,6 +347,7 @@ Per **Dispatch-Discipline Mechanisms (b)**, each path in `EXPECTED_HAND_AUTHORED
 | Path | Receipt |
 |------|---------|
 | `src/v3/compiler/src/cementing_dispatch.rs` | **ROADMAP:** `ROADMAP.md` — **v3 lens capability honesty pass** (same posture as `wiring_scanner_test.rs`). **Dissolution (host scan):** reflected wiring facts at the runner edge so dispatch does not read `tests/integration.rs` from disk. **Dissolution (receipt expansion):** move the `expected_cementing_receipt_triples` projection bridge out of Rust into structural `.dag` data keyed from the register ∩ `regen.dag` projection (single roster authority). **Interim ratchet:** `CementingDispatchMatchesProjection` + closed `CementingBandCReceiptKind` in `tests/dag/cementing_dispatch.dag`. |
+| `src/v3/compiler/src/gunbc_ci.rs` | **ROADMAP:** `ROADMAP.md` § **Forward-Tracked Lane: T-Workflow-As-Data** (≈L57–L63; substrate lane feeding program gate **#103** `ci_uses_affected_set_selection` per `docs/r3-program-plan.md` + `docs/briefs/r3-wave1-s6-slice7-affected-set-impl-worker.md`). **Dissolution:** remove when `CIWorkflowDag` affected-gate dispatch is owned by `.dag` programs / generated `TestClaim` receipts (or the dag compiler emits selection) with **no** parallel Rust mirror over the `dsl/gunbc/ci.dag` carrier. **Interim ratchet:** `select_affected_gates` + in-module hermetic tests pin symmetric edge-expansion semantics consistent with `CIGateEdge { from, to }` in `dsl/gunbc/ci.dag`. |
 | `src/v3/compiler/src/integration_rs_wiring_scan.rs` | **ROADMAP:** same **v3 lens capability honesty pass** bullet as `wiring_scanner_test.rs`. **Dissolution:** remove when `tests/integration.rs` cementing `#[path]` / `mod` wiring can be validated structurally (no line scanner). **Interim ratchet:** `Err` (not panic) on raw/byte string openers in **Code** so `CementingDispatchMatchesProjection` surfaces `ClaimResult::Fail`. |
 | `src/v3/compiler/src/r3_gate_87_cementing_regen_runner_suites.rs` | **ROADMAP:** same **v3 lens capability honesty pass** / gate #87 closure. **Dissolution:** PB-B-1 gate-#87 harness inventory is generated or reflected as substrate facts (no hand-maintained `R3_GATE_87_CEMENTING_REGEN_SUITES` table); `t_pb_b_1_dag_runner_test`, `cementing_dispatch`, and `r3_gate_87_lens_cementing_regen_receipts_test` consume that single authority. **Interim ratchet:** one merge-visible table shared across those consumers (INVARIANTS P2 single authority). |