Implement queue-first curation workflow

docs/tables_frontend_overhaul_implementation_plan.md

@@ -30,7 +30,7 @@ It is intentionally implementation-focused:
 
 - Branch: `frontend/tables-overhaul`
 - Last updated: `2026-04-12`
-- Current focus: `Phase 4`
+- Current focus: `Phase 5`
 - Document mode: living plan and progress log
 
 ### Progress Log
@@ -76,6 +76,7 @@ It is intentionally implementation-focused:
 | 2026-03-21 | Post-P3 fix 1 | Completed | Added a defensive visible-column fallback in the table canvas and tightened view-state normalization so a stale severity filter cannot collapse the grid to roll bands only. |
 | 2026-04-11 | Post-P3 fix 2 | Completed | Simplified `/tables` by removing static prose and context controls, dropped the redundant selected-result inspector in favor of a floating action menu, and moved the canvas onto its own scroll region so sticky headers layer correctly beneath the context bar. |
 | 2026-04-12 | Phase 4 planning | Planned | Expanded the `Curation` phase from a route placeholder into a concrete migration plan that moves queue-first curation out of `Tables` and into a dedicated workflow surface. |
+| 2026-04-12 | Phase 4 | Completed | Replaced the placeholder `/curation` route with a real queue-first workspace, added queue scope and context persistence, moved browse-to-curation handoff out of `Tables`, and preserved diagnostics and full-editor escape hatches without keeping queue work on the reference page. |
 
 ### Lessons Learned
 
@@ -565,22 +566,22 @@ Turn `/tables` into the canonical reference surface for reading and inspecting c
 
 ### Status
 
-`Planned`
+`Completed`
 
 ### Task Progress
 
 | Task | Status | Notes |
 | --- | --- | --- |
-| `P4.1` | Planned | Replace the current placeholder route with a real stateful `Curation` host page while keeping shell navigation and route identity stable. |
-| `P4.2` | Planned | Reuse the shared table-context and selection patterns from Phase 2 and Phase 3 so queue state, deep links, and restore behavior stay consistent with `Tables`. |
-| `P4.3` | Planned | Introduce one normalized queue-scope model for `All tables`, `Selected table`, and `Pinned set` instead of hard-coding the current table-only flow. |
-| `P4.4` | Planned | Introduce a shared queue descriptor and next-item selection pipeline so queue ordering and scope resolution are not trapped inside `Tables.razor`. |
-| `P4.5` | Planned | Build a queue-first split workspace with summary, source image, parsed preview, quick parse input, and predictable primary actions. |
-| `P4.6` | Planned | Rehost the current load, reparse, mark-curated, and save-and-advance mechanics from `Tables` with minimal churn instead of rewriting them from scratch. |
-| `P4.7` | Planned | Preserve full editor access as an escape hatch while making `Mark curated` and `Quick parse` the common fast path. |
-| `P4.8` | Planned | Keep save-and-advance inside the same workflow lane by retaining scope, queue ordering, and current work context after save. |
-| `P4.9` | Planned | Keep the action hierarchy disciplined so warning treatment is reserved for disruptive repair actions rather than normal save flow. |
-| `P4.10` | Planned | Remove raw diagnostics and provenance details from the default curation lane and link out to `Tools` when deep inspection is needed. |
+| `P4.1` | Completed | The placeholder route was replaced with an interactive `Curation` page host that owns queue scope, queue item, loading, quick-parse, and save-and-advance state. |
+| `P4.2` | Completed | `Curation` now restores and persists context through the shared table-context infrastructure and reuses the same deep-link object identifiers as `Tables` and diagnostics. |
+| `P4.3` | Completed | The new queue surface supports `All tables`, `Selected table`, and `Pinned set` scopes. |
+| `P4.4` | Completed | Queue ordering and next-item resolution now live in dedicated frontend curation helpers instead of inside `Tables.razor`. |
+| `P4.5` | Completed | The page now presents a stable queue-first split workspace with queue summary, source image, parsed preview, inline quick parse, and fixed primary actions. |
+| `P4.6` | Completed | The existing load, reparse, mark-curated, and save-and-advance mechanics were rehosted into `Curation` with minimal backend churn. |
+| `P4.7` | Completed | Full editor access remains available from the curation lane, while `Quick parse` and `Mark curated and continue` are the primary fast path. |
+| `P4.8` | Completed | Save-and-advance keeps the user in the same scope and walks the queue forward without reopening context. |
+| `P4.9` | Completed | Normal save flow stays on the primary accent action hierarchy and does not borrow warning treatment. |
+| `P4.10` | Completed | Diagnostics remain out of the default curation lane and are linked contextually through `Tools` instead of embedded inline. |
 
 ### Current Baseline