docs: add MIR13 mode doc and set PHI-off as default; bridge lowering split (if/loop/try); llvmlite resolver stabilization; curated runner default PHI-off; refresh CURRENT_TASK.md

docs/development/current/selfhost/dep_tree_min_string.md

@@ -0,0 +1,39 @@
+# Include-only Dependency Tree (Phase 0)
+
+Goal
+- Build a dependency tree using only Ny (no Array/Map), scanning source text for `include "..."`, and output stable JSON.
+
+Scope (Phase 0)
+- Only `include` is supported. `using/module/import` are out of scope.
+- Runner bridge: `NYASH_DEPS_JSON=<path>` is read and logged only (no behavior change).
+
+Tool
+- `apps/selfhost/tools/dep_tree_min_string.nyash`
+  - Recursively reads source files, scans for `include "path"` outside of strings and comments.
+  - Comments: `//` and `#` (line comments) are ignored.
+  - Strings: `"..."` with `\"` escapes are honored.
+  - Cycles: detected via a simple stack string; when detected, the child appears as a leaf node with empty `includes`/`children`.
+
+Output format
+```
+{ "version": 1,
+  "root_path": "<entry>",
+  "tree": {
+    "path": "<file>", "includes": ["..."], "children": [ <node> ]
+  }
+}
+```
+
+Acceptance criteria
+- Running `make dep-tree` produces `tmp/deps.json` whose first non-empty line starts with `{` and conforms to the format above.
+- The scanner does not pick includes inside strings or comments.
+- Cycles do not crash or loop; the repeated node is represented as a leaf.
+
+Examples
+- Root: `apps/selfhost/smokes/dep_smoke_root.nyash` (includes `dep_smoke_child.nyash`)
+- Cycle: `apps/selfhost/smokes/dep_smoke_cycle_a.nyash` ↔ `dep_smoke_cycle_b.nyash`
+
+Validation (examples)
+- `echo apps/selfhost/smokes/dep_smoke_root.nyash | ./target/release/nyash --backend vm apps/selfhost/tools/dep_tree_min_string.nyash`
+- `make dep-tree`
+