chore: merge environment serve (5e242c13) into environment export

docs/cli.md

@@ -286,6 +286,12 @@ reported separately as configured-secret exclusions.
 Re-import saved graphs whose pattern-based exclusions lack `pattern` before
 using them in source-to-bundle comparisons.
 
+Entries that change during an import retain an unavailable-entry diagnostic
+alongside readable siblings. If enumeration of an already admitted root fails,
+the graph keeps its observed children and records the root failure as a
+top-level limitation. That partial inventory does not establish absence among
+unexamined children.
+
 JavaScript and TypeScript import parsing requires valid UTF-8. Malformed source
 bytes retain their original hashes and sizes with a decoding diagnostic; REA
 does not infer module targets from replacement characters.