Integrate six-stage Indicatif progress (3-9-1) with OrthoConfig

Cargo.toml

@@ -27,6 +27,7 @@ cap-std = { version = "3.4.4", features = ["fs_utf8"] }
 camino = "1.2.0"
 semver = { version = "1", features = ["serde"] }
 anyhow = "1"
+indicatif = "0.18.4"
 thiserror = "1"
 miette = { version = "7.6.0", features = ["fancy"] }
 digest = "0.10"

docs/execplans/3-8-1-add-accessible-output-mode.md

@@ -171,6 +171,7 @@ Implementation complete. All quality gates pass (`make check-fmt`,
 `make lint`, `make test`).
 
 **What went well:**
+
 - The `resolve_with` dependency-injection pattern for environment variable
   lookup made both unit tests and BDD tests clean and deterministic.
 - The `OutputMode` enum and `StatusReporter` trait provide a clean
@@ -179,13 +180,15 @@ Implementation complete. All quality gates pass (`make check-fmt`,
   worked well with checkpoint validation between stages.
 
 **What was surprising:**
+
 - `clippy::print_stderr` is denied globally, requiring `writeln!(io::stderr())`
   instead of `eprintln!`. The `drop()` wrapper follows the `main.rs` pattern.
 - The BDD `Given the environment variable` step already existed in
   `manifest/mod.rs` and sets real process env vars. Using "simulated"
   env vars in the TestWorld avoided test interference.
 
 **Metrics:**
+
 - 4 new files created, 10 files modified.
 - 12 unit tests (output_mode), 7 BDD scenarios (accessible_output).
 - ~300 net new lines of code (well within the 800-line tolerance).