refactor: wire web to the in-repo engine and shared data dir

- web/src/server/paths.ts resolves the repo root from its own location,
  loads the single repo-root .env, and defines data/web/ (watchlist,
  stock cache, backtest cache) and data/precomputed/.
- The API spawns bridge.py at the repo root instead of ../quant.
- precompute_backtest.py writes to data/precomputed/ instead of
  ../stock-agent/data/precomputed.
- Rename the project to quant-trading (web package quant-trading-web).

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

.env.example

@@ -0,0 +1,5 @@
+# Copy to .env (untracked) at the repository root.
+# IPADS Responses API key for the web watchlist agent; blank uses demo data.
+IPADS_API_KEY=
+# Proxy URL for the live monitor's market-data fetches (deploy/start-monitor.sh).
+QUANT_MARKET_PROXY=

.gitignore

@@ -55,3 +55,7 @@ data/*_unavailable.json
 logs/
 memory/
 .tmp_finance/
+
+# Web UI state and precomputed backtests (web/src/server/paths.ts)
+data/web/
+data/precomputed/

bridge.py

@@ -1,5 +1,5 @@
 """
-Bridge script for stock-agent integration.
+Bridge between the Python engine and the web API (web/src/server/strategyService.ts).
 
 Outputs JSON to stdout; all logs go to stderr.
 
@@ -1186,7 +1186,7 @@ def cmd_live(args: argparse.Namespace) -> None:
 # ---------------------------------------------------------------------------
 
 def main() -> None:
-    parser = argparse.ArgumentParser(description="Quant bridge for stock-agent")
+    parser = argparse.ArgumentParser(description="Quant bridge for the web API")
     subparsers = parser.add_subparsers(dest="command")
 
     # list

precompute_backtest.py

@@ -326,7 +326,7 @@ def main():
     parser = argparse.ArgumentParser(description="Pre-compute backtest results")
     parser.add_argument(
         "--output", default=None,
-        help="Output directory (default: ../stock-agent/data/precomputed)",
+        help="Output directory (default: data/precomputed, read by the web UI)",
     )
     parser.add_argument(
         "--years", type=int, default=10,
@@ -335,7 +335,7 @@ def main():
     args = parser.parse_args()
 
     output_dir = args.output or os.path.join(
-        os.path.dirname(os.path.abspath(__file__)), "..", "stock-agent", "data", "precomputed"
+        os.path.dirname(os.path.abspath(__file__)), "data", "precomputed"
     )
     os.makedirs(output_dir, exist_ok=True)
 

pyproject.toml

@@ -1,5 +1,5 @@
 [project]
-name = "quant"
+name = "quant-trading"
 version = "0.1.0"
 description = "Add your description here"
 readme = "README.md"

uv.lock

@@ -761,7 +761,7 @@ wheels = [
 ]
 
 [[package]]
-name = "quant"
+name = "quant-trading"
 version = "0.1.0"
 source = { virtual = "." }
 dependencies = [

web/.env.example

@@ -1 +0,0 @@
-IPADS_API_KEY=

web/package-lock.json

@@ -1,11 +1,11 @@
 {
-  "name": "personal-stock-agent",
+  "name": "quant-trading-web",
   "version": "0.1.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
-      "name": "personal-stock-agent",
+      "name": "quant-trading-web",
       "version": "0.1.0",
       "dependencies": {
         "@vitejs/plugin-react": "^5.0.0",

web/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "personal-stock-agent",
+  "name": "quant-trading-web",
   "version": "0.1.0",
   "private": true,
   "type": "module",

web/src/server/index.ts

@@ -1,4 +1,4 @@
-import "dotenv/config";
+import { PRECOMPUTED_DIR, WEB_DATA_DIR } from "./paths";
 import cors from "cors";
 import express from "express";
 import { existsSync, readFileSync } from "node:fs";
@@ -15,11 +15,10 @@ import { listStrategies, runBacktest, getCachedResult, getLiveStrategies } from
 
 const port = Number(process.env.PORT ?? 8787);
 const host = process.env.HOST ?? "127.0.0.1";
-const dataDir = process.env.STOCK_AGENT_DATA_DIR ?? join(process.cwd(), "data");
 
-const watchlistStore = new WatchlistStore(join(dataDir, "watchlist.json"));
+const watchlistStore = new WatchlistStore(join(WEB_DATA_DIR, "watchlist.json"));
 const dataProvider = createProvider(loadIpadsConfig().apiKey);
-const stockDataCache = new StockDataCache(join(dataDir, "cache"), dataProvider);
+const stockDataCache = new StockDataCache(join(WEB_DATA_DIR, "cache"), dataProvider);
 const app = express();
 
 let cachedReportUpdatedAt = 0;
@@ -157,7 +156,7 @@ app.get("/api/strategies", async (_request, response, next) => {
 });
 
 function loadPrecomputedFile() {
-  const precomputedPath = join(dataDir, "precomputed", "backtest_results.json");
+  const precomputedPath = join(PRECOMPUTED_DIR, "backtest_results.json");
   if (!existsSync(precomputedPath)) {
     throw new Error("Pre-computed results not available. Run precompute_backtest.py first.");
   }

web/src/server/paths.ts

@@ -0,0 +1,14 @@
+import { config } from "dotenv";
+import { join, resolve } from "node:path";
+import { fileURLToPath } from "node:url";
+
+// web/src/server/ → repository root, which also holds bridge.py and the Python engine.
+export const REPO_ROOT = resolve(fileURLToPath(new URL("../../..", import.meta.url)));
+
+// Secrets such as IPADS_API_KEY live in the single untracked repo-root .env.
+config({ path: join(REPO_ROOT, ".env"), quiet: true });
+
+// Web-only state: watchlist, per-stock cache and backtest result cache.
+export const WEB_DATA_DIR = join(REPO_ROOT, "data", "web");
+// Written by precompute_backtest.py, read by the strategy page.
+export const PRECOMPUTED_DIR = join(REPO_ROOT, "data", "precomputed");

web/src/server/strategyService.ts

@@ -1,11 +1,11 @@
 import { spawn } from "node:child_process";
 import { createHash } from "node:crypto";
 import { existsSync, mkdirSync, readFileSync, readdirSync, statSync, writeFileSync, unlinkSync } from "node:fs";
-import { join, resolve } from "node:path";
+import { join } from "node:path";
+import { REPO_ROOT, WEB_DATA_DIR } from "./paths";
 import type { BacktestConfig, BacktestResult, LiveStrategyState, StrategyInfo } from "../shared/strategyTypes.js";
 
-const QUANT_DIR = resolve(process.env.QUANT_PROJECT_DIR || join(process.cwd(), "../quant"));
+const CACHE_DIR = join(WEB_DATA_DIR, "strategy_cache");
-const CACHE_DIR = join(process.env.STOCK_AGENT_DATA_DIR || join(process.cwd(), "data"), "strategy_cache");
 const TIMEOUT_MS = Number(process.env.QUANT_BACKTEST_TIMEOUT_MS) || 180_000;
 const CACHE_TTL_MS = 24 * 60 * 60 * 1000;
 const MAX_CACHE_FILES = 50;
@@ -37,7 +37,7 @@ function stableStringify(value: unknown): string {
 function runBridge(args: string[]): Promise<unknown> {
   return new Promise((resolve, reject) => {
     const proc = spawn("uv", ["run", "python", "bridge.py", ...args], {
-      cwd: QUANT_DIR,
+      cwd: REPO_ROOT,
       env: { ...process.env, PYTHONUNBUFFERED: "1" },
     });