remove legacy backend stack and stale deployment docs after rebuild

README.md

@@ -1,30 +1,16 @@
-# Fiscal Clone 3.0 (Turbopack Rebuild)
+# Fiscal Clone 3.0
 
-Ground-up rebuild into a single Next.js 16 application that runs with Turbopack and internal API routes.
+Turbopack-first rebuild of a fiscal.ai-style terminal with OpenClaw integration.
 
-## What changed
+## Stack
 
-- Removed hard runtime dependency on the external backend for core app workflows.
-- Added internal `app/api/*` services for watchlist, portfolio, filings, tasks, and health.
-- Added durable local data store at runtime (`frontend/data/store.json`).
-- Added async task engine with retry support for:
-  - `sync_filings`
-  - `refresh_prices`
-  - `analyze_filing`
-  - `portfolio_insights`
-- Added OpenClaw integration through OpenAI-compatible `/v1/chat/completions`.
-- Enforced Turbopack for both development and production builds.
+- Next.js 16 App Router
+- Turbopack for `dev` and `build`
+- Internal API routes (`app/api/*`)
+- Durable local task engine and JSON data store
+- OpenClaw/ZeroClaw analysis via OpenAI-compatible chat endpoint
 
-## Architecture
-
-- `frontend/`: full app (UI + API + task engine)
-- `frontend/app/api/*`: route handlers
-- `frontend/lib/server/*`: storage, task processors, SEC/pricing adapters, OpenClaw client
-- `frontend/data/store.json`: generated local runtime state (git-ignored)
-
-The legacy `backend/` folder is retained in-repo but no longer required for the rebuilt local workflow.
-
-## Run
+## Run locally
 
 ```bash
 cd frontend
@@ -32,9 +18,9 @@ npm install
 npm run dev
 ```
 
-Open: [http://localhost:3000](http://localhost:3000)
+Open [http://localhost:3000](http://localhost:3000).
 
-## Build (Turbopack)
+## Production build
 
 ```bash
 cd frontend
@@ -42,18 +28,21 @@ npm run build
 npm run start
 ```
 
-## OpenClaw setup
+## Environment
 
-Set in environment (for example `frontend/.env.local`):
+Use root `.env` or `frontend/.env.local`:
 
 ```env
+# leave blank for same-origin API
+NEXT_PUBLIC_API_URL=
+
 OPENCLAW_BASE_URL=http://localhost:4000
 OPENCLAW_API_KEY=your_key
 OPENCLAW_MODEL=zeroclaw
 SEC_USER_AGENT=Fiscal Clone <support@fiscal.local>
 ```
 
-If OpenClaw is not configured, the app falls back to local analysis responses so task flows remain testable.
+If OpenClaw is unset, the app uses local fallback analysis so task workflows still run.
 
 ## API surface