chore: decommission FMP, Finnhub and Alpha Vantage (A6)

The A5 cutover has been on and observed in production, so SEC Company Facts +
DoltHub earnings are already the live source for `fundamental_data`. This
removes everything the legacy path still occupied.

Gone: the three providers and their config/env keys; the weekly
`fundamental_collector` job; the cutover toggle (SEC + Dolt is now the
unconditional path, so `off` can no longer silently freeze scoring inputs); the
A5 parity report, whose deltas became structurally zero once the candidate
builder started writing the table it compared against; and the FMP tier of
universe bootstrap.

Two behavioral notes:

- Disabling **SEC Fundamentals Import** now stops the SEC network fetch only.
  The local cache refresh moved outside the job-enable check, because candidates
  also derive from daily closes and earnings events — freezing those on an
  ingestion pause would stale scoring with no fallback left to recover from.
- `/ingestion/fetch?sources=fundamentals` still accepts the key and reports
  `skipped`; there is no per-ticker fetch any more.

Migration 029 does not blanket-delete the leftover settings rows. Migrations run
before the service restart, and pre-A6 code reads an absent `job_*_enabled` row
as *enabled* — so the two behavior-bearing keys become tombstones pinned to safe
values (hidden in Admin) and only the inert three are deleted. Removing the
provider keys from the production `.env` is the matching rollout step.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

frontend/src/pages/AdminPage.tsx

@@ -5,8 +5,6 @@ import { AlertSettings } from '../components/admin/AlertSettings';
 import { SentimentProviderSettings } from '../components/admin/SentimentProviderSettings';
 import { DataCleanup } from '../components/admin/DataCleanup';
 import { JobControls } from '../components/admin/JobControls';
-import { FundamentalsParityPanel } from '../components/admin/FundamentalsParityPanel';
-import { FundamentalsCutoverSettings } from '../components/admin/FundamentalsCutoverSettings';
 import { PerformanceSettings } from '../components/admin/PerformanceSettings';
 import { PipelineReadinessPanel } from '../components/admin/PipelineReadinessPanel';
 import { SystemEventsPanel } from '../components/admin/SystemEventsPanel';
@@ -37,7 +35,6 @@ export default function AdminPage() {
         {activeTab === 'Tickers' && <TickerManagement />}
         {activeTab === 'Settings' && (
           <div className="space-y-4">
-            <FundamentalsCutoverSettings />
             <ActivationSettings />
             <ExitPolicySettings />
             <PerformanceSettings />
@@ -51,7 +48,6 @@ export default function AdminPage() {
         {activeTab === 'Jobs' && (
           <div className="space-y-4">
             <ScheduleSettings />
-            <FundamentalsParityPanel />
             <JobControls />
             <PipelineReadinessPanel />
           </div>

frontend/src/pages/TickerDetailPage.tsx

@@ -102,7 +102,7 @@ interface DataStatusItem {
   available: boolean;
   timestamp?: string | null;
   timestampLabel?: string | null;
-  selector: FetchSelector;   // what a refresh of this row fetches
+  selector?: FetchSelector;  // what a refresh fetches; omit for rows with no manual refresh
   paid?: boolean;            // provider call that may cost money/quota
 }
 
@@ -138,14 +138,16 @@ function DataFreshnessBar({
           ) : !item.available ? (
             <span className="text-[10px] text-gray-600">no data</span>
           ) : null}
-          <button
-            onClick={() => onRefresh(item)}
-            disabled={busy}
-            title={item.paid ? `Fetch ${item.label} (uses provider quota)` : `Recompute ${item.label}`}
-            className="ml-0.5 text-gray-500 hover:text-blue-300 disabled:opacity-40 transition-colors"
-          >
-            <RefreshIcon spinning={pendingLabel === item.label} />
-          </button>
+          {item.selector && (
+            <button
+              onClick={() => onRefresh(item)}
+              disabled={busy}
+              title={item.paid ? `Fetch ${item.label} (uses provider quota)` : `Recompute ${item.label}`}
+              className="ml-0.5 text-gray-500 hover:text-blue-300 disabled:opacity-40 transition-colors"
+            >
+              <RefreshIcon spinning={pendingLabel === item.label} />
+            </button>
+          )}
           {item.paid && <span className="text-[9px] text-amber-500/70" title="Uses a paid/quota provider call">$</span>}
         </div>
       ))}
@@ -226,11 +228,11 @@ export default function TickerDetailPage() {
       paid: true,
     },
     {
+      // Rebuilt for the whole universe by the nightly SEC + Dolt imports —
+      // there is no per-ticker fetch to offer here.
       label: 'Fundamentals',
       available: !!fundamentals.data && fundamentals.data.fetched_at !== null,
       timestamp: fundamentals.data?.fetched_at,
-      selector: ['fundamentals'] as FetchSelector,
-      paid: true,
     },
     {
       label: 'S/R Levels',
@@ -247,6 +249,7 @@ export default function TickerDetailPage() {
   ], [ohlcv.data, sentiment.data, fundamentals.data, srLevels.data, scores.data]);
 
   const handleRefresh = (item: DataStatusItem) => {
+    if (!item.selector) return;
     setRefreshingLabel(item.label);
     ingestion.mutate(
       { symbol, sources: item.selector },