Pivot to text-first column-stack workspace + merge-with-review across AI artifacts

Workspace
- Pivot from "set of open panes" to a Finder-style miller column stack:
  TopBar / LeftSidebar / [section → entity → entity ...] / pinned text editor.
  openPanesStore is now an ordered Column[] with pushFrom / closeFrom /
  setStack; only one top-level section is rooted at a time.
- New entity column panes: Term, Block, Association, Constraint,
  Requirement, Finding. Click-through navigation truncates deeper
  columns automatically.
- LeftSidebar surfaces a pending-count chip per section (single-glance
  navigation cue) and spins its analyze ↻ via SVG Spinner whenever the
  LLM is working — including server-initiated runs caught by the runs
  poll, not just user-triggered ones.

Analyze pipeline + persistence
- Unified `concepts` pass (taxonomy + glossary in one LLM call) replaces
  the two-pass setup. Server still accepts ?section=taxonomy|glossary
  and normalizes them for back-compat.
- model / requirements / detection (assumptions, risks, inconsistencies)
  + cross-layer validation rules (X1–X4: stale term link, unlinked
  formalism, undefined linked term, prose-only term).
- Persistence: NarrativeDocument, ModelSnapshot, ChangelogEntry,
  TaxonomyTerm, RequirementEntry, Finding, AnalysisRun. Re-runs MERGE
  instead of replace: gentle update on existing items, suggested on new,
  deprecated on missing — same idiom for every artifact kind. User pins
  preserve "kept" decisions across re-analyses.
- Migrations: pivot_text_first, add_requirement_linked_term,
  term_review_state, review_state_for_reqs_and_findings,
  add_term_definition_pinned.

Concept ↔ ontology integration
- linkedTermId on Block / Association / Constraint / Requirement.
  PromoteToolbar lets the user formalize a concept inline: + Block /
  + Association / + Constraint / + Requirement, all routed through
  applyOps so undo/redo and SSE work for free.
- decideElement op for in-canvas keep/discard on review-pending model
  elements.

User-authored definitions
- TermColumn definition is click-to-edit. Save (Cmd-Enter / blur),
  Cancel (Esc), Reset to AI suggestion when pinned.
- definitionPinned flag on TaxonomyTerm: future Analyze runs leave the
  user's text alone. setTermDefinition repo function + POST
  /api/projects/[id]/terms/[termId]/definition endpoint.
- mergeTaxonomySuggestion + applyGlossaryDefinitions both pin-aware.

UX/UI
- StatusChip: single component for all state idioms (suggested,
  deprecated, accepted, dismissed, resolved, severity, validation code,
  confidence, warn). Replaces 5+ ad-hoc badge classes.
- PaneControls (PaneViewTabs + PaneFilterChip): separates view-mode
  toggles from filter chips so toggling Pending no longer flips you off
  the current view.
- PaneEmpty: unified empty-state with title + hint + action.
- PaneDrawer: collapsible groups for Pending / Discarded review; cards
  group as Kept (top) → Pending (bottom drawer) → Discarded (Findings
  only, hidden when empty). Restore action recovers dismissed/resolved
  findings.
- ConceptCard unifies Tree and A–Z views in Concepts; only Tree parents
  carry the chevron (no empty placeholder offset).
- Type + spacing tokens (--text-xs..xl, --space-1..6, --lh-tight/ui/
  prose, --radius-*) replace every ad-hoc value.
- Buttons standardized to body sans 500 (was a mishmash of mono / display).
- Card shells unified across Concepts / Requirements / Findings.

Cleanup
- Removed: LeftRail, FindingsPanel, IssuesPanel, SocratesDock,
  ProposalCard, SlashMenu, SlashExtension, slashSuggestion,
  CanvasHeader, TaxonomyPane, GlossaryPane, TermDetail (popover; now
  TermColumn).
- Section ids in openPanesStore: dropped taxonomy/glossary, added
  concepts. localStorage migration runs on hydrate.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/web/app/api/seed/finalize/route.ts

@@ -0,0 +1,51 @@
+// POST /api/seed/finalize
+//
+// Pivot flow: turn the SeedDraft into structured prose, persist it as the
+// NarrativeDocument, create an empty model snapshot, and return the new
+// project id so the client can navigate to /editor/[id]. The analyze
+// pipeline runs on first paint of the editor (or via Analyze All).
+
+import { NextResponse } from "next/server";
+import { createProjectFromSeed, saveDocument } from "../../../../lib/db/repo";
+import { seedToProseDoc } from "../../../../lib/llm/seedToProse";
+import { runAnalyze } from "../../../../lib/llm/analyze/runAll";
+import type { SeedDraft } from "../../../../lib/llm/seedInterview";
+import type { SysMLModel } from "../../../../lib/sysml/model";
+
+export async function POST(req: Request) {
+  let body: { draft?: SeedDraft };
+  try {
+    body = await req.json();
+  } catch {
+    return NextResponse.json({ error: "invalid json body" }, { status: 400 });
+  }
+  const draft = body.draft;
+  if (!draft || !draft.problem || !draft.targetUser || !draft.desiredOutcome) {
+    return NextResponse.json(
+      { error: "draft must include problem, targetUser, desiredOutcome" },
+      { status: 400 }
+    );
+  }
+
+  try {
+    const emptyModel: SysMLModel = { blocks: [], associations: [], constraints: [], requirements: [] };
+    const created = await createProjectFromSeed({
+      name: draft.title?.trim() || "Untitled idea",
+      scope: "Untitled scope",
+      tagline: draft.problem.slice(0, 80),
+      model: emptyModel,
+    });
+    await saveDocument(created.projectId, seedToProseDoc(draft));
+
+    // Kick off the full Analyze pipeline in the background so the editor lands
+    // populated. Errors are logged but do not block the redirect — the user
+    // can hit Analyze All again from the TopBar if anything goes sideways.
+    void runAnalyze(created.projectId, "all").catch(err =>
+      console.error(`[seed/finalize] background analyze failed for ${created.projectId}:`, err)
+    );
+
+    return NextResponse.json({ projectId: created.projectId, version: created.version });
+  } catch (err) {
+    return NextResponse.json({ error: (err as Error).message }, { status: 500 });
+  }
+}

apps/web/app/api/seed/turn/route.ts

@@ -0,0 +1,44 @@
+// POST /api/seed/turn
+//
+// Per-turn handler for the live seed interview. Stateless — client passes
+// the running thread + draft + user text; we return the next assistant turn
+// + an updated draft + a `ready` flag.
+
+import { NextResponse } from "next/server";
+import { interviewStep, type InterviewTurn, type SeedDraft } from "../../../../lib/llm/seedInterview";
+
+export async function POST(req: Request) {
+  let body: { history?: InterviewTurn[]; userText?: string; draft?: SeedDraft };
+  try {
+    body = await req.json();
+  } catch {
+    return NextResponse.json({ error: "invalid json body" }, { status: 400 });
+  }
+
+  const history = Array.isArray(body.history) ? body.history : [];
+  const draft: SeedDraft = body.draft ?? {
+    title: "",
+    problem: "",
+    targetUser: "",
+    desiredOutcome: "",
+  };
+  const userText = body.userText ?? "";
+
+  try {
+    const result = await interviewStep({ history, userText, draft });
+    return NextResponse.json({
+      assistant: { text: result.text },
+      draft: result.draft,
+      confidence: result.confidence,
+      ready: result.ready,
+      meta: {
+        provider: result.provider,
+        model: result.model,
+        inputTokens: result.inputTokens,
+        outputTokens: result.outputTokens,
+      },
+    });
+  } catch (err) {
+    return NextResponse.json({ error: (err as Error).message }, { status: 500 });
+  }
+}