Added data fetcher module

.gitignore

@@ -0,0 +1,3 @@
+.env
+
+__pycache__/

CHANGELOG.md

@@ -1,30 +1,186 @@
-## 09:00
+# 📄 Changelog
 
-### Features Added
-- Initialized project structure
-- Added `AGENTS.md` with hackathon workflow rules
-- Created `CHANGELOG.md` with predefined format
+All notable changes to **EnviroCheck – Climate Intelligence System** are documented here.
+This project follows semantic versioning.
 
-### Files Modified
-- AGENTS.md
-- CHANGELOG.md
-- README.md
+---
 
-### Issues Faced
-- None
+## [1.0.0] – Initial Release
 
-## 12:47
+### 🔹 Data Integration
 
-### Features Added
-- Added local template image assets (template_acm.png, template_clique.png)
-- Refactored AGENTS.md, README.md, and CHANGELOG.md to use 24-hour time format (HH:MM) instead of "Hour X"
+* Integrated real-time environmental data using:
 
-### Files Modified
-- AGENTS.md
-- CHANGELOG.md
-- README.md
-- template_acm.png
-- template_clique.png
+  * OpenWeatherMap API (temperature, humidity, rainfall)
+  * WAQI API (Air Quality Index)
+* Implemented centralized data pipeline using `data_fetcher.py`
 
-### Issues Faced
-- Initial remote image download attempt failed, resolved by using provided local files
+### 🔹 Location Intelligence
+
+* Developed location classification system:
+
+  * Industrial, Traffic, Coastal, Urban zones
+* Dynamic AQI adjustment based on environmental context
+
+---
+
+## [1.1.0] – Risk Analysis Engine
+
+### ⚠ Risk Engine (`risk_engine.py`)
+
+* Implemented threshold-based environmental risk detection:
+
+  * Heat Risk:
+
+    * Moderate > 32°C
+    * High > 38°C
+  * Flood Risk:
+
+    * Moderate > 3 mm rainfall
+    * Critical > 10 mm rainfall
+  * Air Quality Risk:
+
+    * Moderate > AQI 80
+    * Unhealthy > AQI 150
+
+### 🔹 Overall Risk Scoring
+
+* Combined multi-factor risks into a unified severity level:
+
+  * Low / Moderate / High
+
+---
+
+## [1.2.0] – Dashboard & Visualization
+
+### 📊 Dashboard Interface (`app.py`)
+
+* Built modern Streamlit UI with:
+
+  * Climate cards (temperature, AQI, humidity, rainfall)
+  * Dark theme with custom CSS
+* Integrated real-time updates and responsive layout
+
+### 🌊 Flood Risk Map
+
+* Implemented dynamic **Leaflet.js map**
+* Risk levels based on rainfall thresholds:
+
+  * Safe → Low → Moderate → Flood Risk
+* Interactive popup with environmental details
+
+---
+
+## [1.3.0] – Indoor Climate & Sensor Simulation
+
+### 🏢 Indoor Climate Module
+
+* Simulated indoor temperature using:
+
+  * AC behavior (office hours logic)
+  * Outdoor temperature influence
+* Comfort classification:
+
+  * Too Cold / Comfortable / Warm / Hot
+
+### 🔹 Sensor Fusion
+
+* Combined:
+
+  * API data
+  * Simulated local sensors
+* Generated corrected environmental values using:
+
+  * Vegetation index
+  * Urban heat island effect
+  * Traffic pollution factors
+
+---
+
+## [1.4.0] – NEXUS Intelligence Engine Integration
+
+### 🧠 Predictive Intelligence (`nexus_full.py`)
+
+* Implemented multi-layer AI reasoning system:
+
+  * **Natural Calamities**
+
+    * Urban flood prediction based on drainage overflow
+  * **Infrastructure Risks**
+
+    * Dew point–based condensation detection
+  * **Health Risks**
+
+    * Heat index → cognitive decline prediction
+    * Pressure drop → migraine prediction
+  * **Environmental Effects**
+
+    * Humidity → fabric drying failure
+    * Temperature → food spoilage acceleration
+
+### 🌊 Flood Modeling
+
+* Drainage capacity model:
+
+  * Overflow = rainfall – threshold (20 mm)
+* Predicts real-world urban flooding scenarios
+
+---
+
+## [1.5.0] – Unified System Integration
+
+### 🔗 Combined Application (`envirocheck_full.py`)
+
+* Merged:
+
+  * EnviroCheck dashboard
+  * NEXUS predictive engine
+* Introduced multi-tab system:
+
+  * Dashboard
+  * Flood Map
+  * Indoor Climate
+  * 5-Day Forecast
+
+### 📅 Forecast Module
+
+* Integrated 5-day forecast using OpenWeather API
+* Daily min/max temperature aggregation
+
+---
+
+## [1.6.0] – Action Plan Module
+
+### 🛠 Smart Action Plan (`action_plan.py`)
+
+* Generated dynamic recommendations based on:
+
+  * Heat risk
+  * Flood risk
+  * Air quality
+* Designed for future integration with NEXUS predictions
+
+### 🔁 Improvement
+
+* Replaced static conditional UI logic with modular AI-driven system
+
+---
+
+## 🔮 Future Enhancements
+
+* Real IoT sensor integration
+* Personalized alerts (elderly, children)
+* Push notification system
+* Advanced geospatial risk mapping
+* Full AI prediction + action automation
+
+---
+
+## 👩‍💻 Contributors
+
+* Julia Mary James
+* Nakshatra Mariam Manoj
+* Nandana Deepak
+* Pooja Nair
+
+---