fix: backfill symbol_demand for sidebar-added symbols + analyst ratings schema fix

- Add await ctx.cache.subscribe() to addSymbol mutation so symbols
  added via the sidebar get registered in symbol_demand and yfinance
  jobs are queued immediately
- Backfill PEP, WYNN, STZ, CELH into symbol_demand + adapter_queue
- Upgrade yahoo-finance2 3.15.3 -> 3.15.4 and pass validateResult:false
  to quoteSummary() to handle Yahoo schema drift
- Add error detail logging for analyst ratings schema failures
- Update .gitignore with common ignores

app/src/lib/chart-theme.ts

@@ -0,0 +1,28 @@
+/**
+ * Chart theme — token-driven colors for all data viz (recharts + custom SVG).
+ * Values reference CSS variables so charts re-theme with the [data-theme]
+ * presets in globals.css. EMA hues are fixed, distinct colors (work on any
+ * background); grid/axis/up/down/accent follow the active theme.
+ */
+export const chart = {
+  grid: "var(--color-line)",
+  axis: "var(--color-fg-muted)",
+  text: "var(--color-fg-muted)",
+  up: "var(--color-up)",
+  down: "var(--color-down)",
+  accent: "var(--color-accent)",
+  neutral: "#6b7280",
+  emaColors: {
+    9: "#f472b6",
+    21: "#a78bfa",
+    50: "#60a5fa",
+    200: "#34d399",
+  },
+  tooltip: {
+    backgroundColor: "var(--color-surface-raised)",
+    border: "1px solid var(--color-line)",
+    borderRadius: 6,
+    color: "var(--color-fg)",
+    fontSize: 12,
+  },
+} as const;