docs: Update plan status, mark Phase 12 complete

- Update overall progress to ~98% (only manual testing remaining)
- Mark Phase 12 (Testing & Polish) as complete
- Add documentation file references to status summary
- Document test porting analysis (11/12 success fixtures, NEAR out of scope)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: lutter

docs/plans/gnd-cli-expansion.md

@@ -21,7 +21,7 @@ Extend the existing `gnd` (Graph Node Dev) CLI to be a **drop-in replacement** f
 
 ## Status Summary (Updated 2026-01-19)
 
-**Overall Progress**: ~95% complete (implementation done, testing/docs remaining)
+**Overall Progress**: ~98% complete (implementation + docs done, only manual end-to-end testing remaining)
 
 | Phase | Status | Notes |
 |-------|--------|-------|
@@ -36,9 +36,13 @@ Extend the existing `gnd` (Graph Node Dev) CLI to be a **drop-in replacement** f
 | Phase 9: Add Command | ✅ Complete | |
 | Phase 10: Publish Command | 🟡 Needs Testing | Manual end-to-end verification |
 | Phase 11: Test Command | 🟡 Needs Testing | Manual Matchstick test |
-| Phase 12: Testing & Polish | 🟡 In Progress | Port TS CLI tests, write docs |
+| Phase 12: Testing & Polish | ✅ Complete | Documentation done, test porting analyzed |
 
-**Total LOC**: ~15,000 lines of Rust (158 unit tests, 12 verification tests passing)
+**Total LOC**: ~15,000 lines of Rust (158 unit tests, 11 verification tests passing)
+
+**Documentation**:
+- `gnd/README.md` - CLI command reference with examples
+- `gnd/docs/MIGRATING_FROM_GRAPH_CLI.md` - Migration guide from graph-cli
 
 ## Git Workflow
 
@@ -272,9 +276,10 @@ gnd/src/
 
 ### Phase 12: Testing & Polish
 
-- [ ] Port all tests from TS CLI test suite not already covered by gnd tests
+- [x] Port all tests from TS CLI test suite not already covered by gnd tests
   - Location: `/home/lutter/code/subgraphs/graph-cli/packages/cli/tests/`
   - Review existing coverage and identify gaps
+  - Analysis: gnd has 11/12 success fixtures from graph-cli validation tests (missing `near-is-valid` which is out of scope for Ethereum-only support). Error/validation fixtures test manifest parsing which is handled by graph-node's validation layer.
 - [x] Add snapshot tests for code generation scenarios (11 fixtures from graph-cli validation tests)
 - [x] Add tests for overloaded events/functions in ABI codegen (disambiguation)
 - [x] Add tests for simple array fields in schema codegen