Add TUI v2 parity checklist and large-vault pagination

docs/README.md

@@ -24,6 +24,7 @@ This directory contains SeedPass project documentation.
 - `entry_types.md`
 - `entry_graph.md`
 - `tui_v2_plan.md`
+- `tui_v2_parity_checklist.md`
 - `security.md`
 - `nostr_setup.md`
 - `nostr_namespace_reset.md`

docs/tui_v2_parity_checklist.md

@@ -0,0 +1,47 @@
+# TUI v2 Parity Checklist
+
+Status: In progress on `beta` (updated 2026-03-01).
+
+This checklist tracks readiness to switch default interactive mode from legacy TUI to `seedpass tui2`.
+
+## Scope
+
+- Legacy baseline: current default `seedpass` interactive path.
+- Candidate: `seedpass tui2` (Textual).
+- Non-goal for cutover: replacing CLI/API behavior.
+
+## Current Parity
+
+| Area | Legacy TUI | TUI v2 | Notes |
+|---|---|---|---|
+| Entry list/search | Yes | Yes | Includes kind filter and search. |
+| Entry detail view | Yes | Yes | Large document content preview is truncated for performance. |
+| Archive/restore | Yes | Yes | Keyboard and command palette paths. |
+| Document editing | Partial | Yes | Save/cancel flow in editor panel. |
+| Graph links list | Limited | Yes | Dedicated links panel. |
+| Link add/remove | Limited | Yes | Via command palette commands. |
+| Neighbor traversal | No | Yes | Link cursor + open target entry. |
+| Command discoverability | Menu-driven | Partial | Keybind hints and palette `help`. |
+| Full legacy workflow coverage | Yes | Pending | Additional edge-case parity still needed. |
+
+## Phase 4 Deliverables
+
+- [x] Feature parity checklist document.
+- [x] First UX/perf pass for large vaults.
+  - paginated entry list rendering (`p`/`n`, `page-*` palette commands)
+  - document content preview truncation in detail panel
+- [ ] Error messaging and recovery flow review.
+- [ ] Cutover decision memo (`seedpass` default switch timing).
+
+## Risks Remaining
+
+- Incomplete parity for legacy-only interactive operations not yet mapped into TUI v2.
+- Textual runtime/version behavior can vary by environment.
+- No dedicated Textual interaction test suite yet for pagination and graph traversal.
+
+## Validation Checklist Before Cutover
+
+- [ ] Define and run deterministic parity scenarios across entry kinds.
+- [ ] Add Textual interaction tests for list/search/edit/link/pagination flows.
+- [ ] Verify large vault behavior with realistic data volume in CI-like environment.
+- [ ] Confirm help text and docs match shipped keybindings and palette commands.

docs/tui_v2_plan.md

@@ -60,8 +60,8 @@ Goal: Introduce a modern, modular TUI (`seedpass tui2`) without rewriting core l
 - [x] Neighbor navigation and quick traversal.
 
 ### Phase 4: Cutover readiness
-- [ ] Feature parity checklist against legacy TUI.
-- [ ] UX/perf pass for large vaults.
+- [x] Feature parity checklist against legacy TUI.
+- [x] UX/perf pass for large vaults.
 - [ ] Error messaging and recovery flows.
 - [ ] Decide default switch timing (`seedpass` -> `tui2`).