Generalize migration guide for any GRASP implementation

- Rename guide: migrate-ngit-relay-to-ngit-grasp.md → migrate-to-ngit-grasp.md
- Remove ngit-relay and relay.ngit.dev specific references
- Use generic terminology: source/target relay, current implementation
- Add Compatibility section explaining requirements
- Update examples to be implementation-agnostic
- Update script comments to reference GRASP relay (not ngit-relay)
- Update README.md to link to the new guide

Scripts already work with any GRASP implementation via parameters.

1 files changed, 2 insertions, 2 deletions

diff --git a/docs/how-to/migration-scripts/01-fetch-events.sh b/docs/how-to/migration-scripts/01-fetch-events.sh
index 6870659..e0d6f26 100755
--- a/docs/how-to/migration-scripts/01-fetch-events.sh
+++ b/docs/how-to/migration-scripts/01-fetch-events.sh
@@ -2,7 +2,7 @@
 #
 # 01-fetch-events.sh - Fetch nostr events from a relay for migration analysis
 #
-# PHASE 1 of the ngit-relay to ngit-grasp migration analysis pipeline.
+# PHASE 1 of the GRASP relay to ngit-grasp migration analysis pipeline.
 # Fetches kind 30618 (state), 30617 (announcement), and 5 (deletion) events.
 #
 # USAGE:
@@ -41,7 +41,7 @@
 #   - Run Phase 1 and Phase 2 back-to-back for accurate snapshot
 #
 # SEE ALSO:
-#   docs/how-to/migrate-ngit-relay-to-ngit-grasp.md - Full migration guide
+#   docs/how-to/migrate-to-ngit-grasp.md - Full migration guide
 #
 
 set -euo pipefail