Implement canon conformance and maintenance optimizations

Assistant: codex
Assistant-Model: gpt-6-astra
Assistant-Session: 01a06e82-3e08-7042-a79d-438ac6eed8db

src/info_tech_canon/paths.py

@@ -0,0 +1,15 @@
+"""Corpus location is independent of the installed Python package."""
+
+import os
+from pathlib import Path
+
+
+def infospace_root(root: Path | str | None = None) -> Path:
+    if root:
+        return Path(root).resolve()
+    if os.environ.get("INFO_TECH_CANON_ROOT"):
+        return Path(os.environ["INFO_TECH_CANON_ROOT"]).resolve()
+    local = Path.cwd() / "infospace"
+    if local.is_dir():
+        return local.resolve()
+    return Path(__file__).resolve().parents[2] / "infospace"