From a3598cf01d0cf728251322b5a80bc78787d41ad3 Mon Sep 17 00:00:00 2001
From: pac7 <47831526-pac7@users.noreply.replit.com>
Date: Wed, 8 Oct 2025 17:18:40 +0000
Subject: [PATCH] Improve application reliability and error handling

Add rate limiting to location detection, standardize error responses, verify HMR stability, and validate Cloudflare integration.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: b3d7d4df-59a9-4a9c-971d-175b92dadbfa
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/7cdf4e95-3f41-4180-b8e3-8ef56d032c0e/b3d7d4df-59a9-4a9c-971d-175b92dadbfa/1VcvPNb
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 replit.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/replit.md b/replit.md
index 776f85c0..b5ed9bee 100644
--- a/replit.md
+++ b/replit.md
@@ -5,6 +5,12 @@ ThrillWiki is a community-driven web application for discovering, reviewing, and
 
 ## Recent Changes (October 8, 2025)
 
+### Performance & Reliability Improvements
+- **Added Rate Limiting to Location Detection:** Implemented in-memory rate limiter for `detect-location` Edge Function to prevent abuse. Limits requests to 10 per minute per IP address with automatic cleanup to prevent memory leaks. Returns 429 status with Retry-After header when limit is exceeded.
+- **Standardized Error Response Format:** Updated `upload-image` Edge Function to use consistent error response structure across all error paths. All responses now include both `error` (short identifier) and `message` (human-readable description) fields, with optional `details` for additional context. This improves client-side error handling and debugging.
+- **Verified HMR Stability:** Investigated and confirmed that Hot Module Reload warnings for `ManufacturerRides.tsx` and `ManufacturerModels.tsx` were transient and have resolved themselves.
+- **Validated Cloudflare Integration:** Confirmed `requireSignedURLs` parameter in `upload-image` function is correctly implemented according to Cloudflare Images API specifications.
+
 ### Bug Fixes & Code Quality
 - **Fixed Novu API Integration:** Updated `update-novu-preferences` Edge Function to correctly use Novu's updatePreference API, which requires separate calls for each channel type (email, sms, in_app, push). Implemented proper error handling that tracks per-channel results and returns 502 status with detailed failure information when any channel fails to update.
 - **Enhanced Input Validation:** Added validation for userId and channelPreferences in `update-novu-preferences` to prevent undefined access errors and return clear 400 error responses for invalid requests.