Add GSP links field and link inspection

specs/versions/0.1/commands.md

@@ -139,6 +139,21 @@ md        Human-readable impact report.
 canvas    Obsidian JSON Canvas for affected relations.
 ```
 
+## links
+
+List normalized links from one GSP id and its context.
+
+```bash
+gsp links <id> [--root .] [--depth -1] [--format json|md] [--out links.json]
+```
+
+The tool resolves link kind and status:
+
+```text
+kind: url | file | folder | missing | unknown
+status: ok | missing | invalid | unchecked
+```
+
 ## message
 
 Validate GSP agent communication messages.