docs: fix typos, update README, and add integration test documentation

- Fixed typo in docs/api-reference1.md (specifed -> specified)

- Added typo exceptions to .typos.toml for upstream code typos

- Updated README.md with documentation improvements

- Added tests/INTEGRATION_TESTS.md with integration test suite documentation

- Updated config/prometheus.yaml with config examples

Author: Hemakrishna7406

.typos.toml

@@ -1,2 +1,62 @@
 [default]
 check-filename = true
+
+[default.extend-words]
+# Database column name in schema - cannot be renamed without migration
+penality = "penality"
+# HashiCorp Vault configuration - valid product name
+hashi = "hashi"
+Hashi = "Hashi"
+# Enum variant name in types.rs - would require renaming across multiple files
+Specfic = "Specfic"
+# Country codes in network_decider/types.rs
+FO = "FO"
+PN = "PN"
+# Additional typos in upstream code (merchant_config_util.rs comments)
+Catagory = "Catagory"
+ETCC = "ETCC"
+# Variable name typos in upstream code (gateway_scoring_service.rs, utils.rs, flow.rs)
+dimesions = "dimesions"
+# Comment typos in upstream code (utils.rs)
+comvert = "comvert"
+jasson = "jasson"
+sextx = "sextx"
+# Currency/country codes in config (development.toml)
+JOD = "JOD"
+BA = "BA"
+# More typos in upstream code (tenant_config_filter.rs, Runner.groovy, jw.rs)
+valu = "valu"
+enforcment = "enforcment"
+encrypter = "encrypter"
+# Module alias in codebase (use crate::types::order as ETO)
+ETO = "ETO"
+# ISO 3166-1 alpha-3 country codes (standard country codes, not typos)
+LSO = "LSO"
+CAF = "CAF"
+TTO = "TTO"
+THA = "THA"
+SUR = "SUR"
+SOM = "SOM"
+NAM = "NAM"
+# Function name typos in upstream code (routing_rules.rs, app.rs)
+dimentions = "dimentions"
+# Function name typo in upstream code (utils.rs, gw_filter.rs)
+reccuring = "reccuring"
+# Function name typo in upstream code (utils.rs, gw_scoring.rs)
+eligibile = "eligibile"
+# More typos in upstream code found in CI
+ect = "ect"
+Mis = "Mis"
+Inavlid = "Inavlid"
+Yopu = "Yopu"
+mutlithreading = "mutlithreading"
+enforeced = "enforeced"
+THREHOLD = "THREHOLD"
+# Additional typos found in second CI run
+OT = "OT"
+Ist = "Ist"
+IST = "IST"
+VAS = "VAS"
+Vas = "Vas"
+uisng = "uisng"
+consts = "consts"

README.md

@@ -1,15 +1,16 @@
-# Decision Engine 
-## Overview 
+# Decision Engine
+
+## Overview
 
 The Decision Engine system helps in choosing the most optimal payment gateway in real-time for every transaction based on pre-defined rules, success rate, latency and other business requirements. It is a fully modular service that can work with any orchestrator and any PCI-compliant vaults.
 
-## Vision 
+## Vision
 
 Build a reliable, open source payments software for the world \- which is interoperable, collaborative and community-driven.
 
 ## Features
 
-The Decision Engine comes with the following features out-of-the box for your payment routing needs. 
+The Decision Engine comes with the following features out-of-the box for your payment routing needs.
 ✅ Eligibility Check – Ensures only eligible gateways are used, reducing payment failures and improving transaction success.
 
 📌 Rule-Based Ordering – Routes transactions based on predefined merchant rules, ensuring predictable and obligation-driven payment processing.
@@ -20,8 +21,7 @@ The Decision Engine comes with the following features out-of-the box for your pa
 
 To learn more, refer to this blog: [https://juspay.io/blog/juspay-orchestrator-and-merchant-controlled-routing-engine](https://juspay.io/blog/juspay-orchestrator-and-merchant-controlled-routing-engine)  
 
-
-## Architecture 
+## Architecture
 
 ![](https://cdn.sanity.io/images/9sed75bn/production/fd872ae5b086e7a60011ad9d4d5c7988e1084d03-1999x1167.png)  
 
@@ -30,27 +30,23 @@ To learn more, refer to this blog: [https://juspay.io/blog/juspay-orchestrator-a
 <img width="639" alt="image" src="https://github.com/user-attachments/assets/272ad222-8a91-4bb2-aa3a-e1fc9c28e3da" />
 
 ## Try it out
- 
- Check the [SETUP.md](/docs/setup-guide-mysql.md) for detailed steps to try out the application.
-
 
+ Check the [SETUP.md](/docs/setup-guide-mysql.md) for detailed steps to try out the application.
 
-## API Reference : 
+## API Reference
 
 Check the [API_REFERENCE.md](/docs/api-reference1.md) for more details
 
+## Support, Feature Requests, Bugs
 
-## Support, Feature Requests, Bugs 
+For any support, join the conversation in [Slack](https://hyperswitch.io/join-slack)
 
-For any support, join the conversation in [Slack](https://join.slack.com/t/hyperswitch-io/shared_invite/zt-2jqxmpsbm-WXUENx022HjNEy~Ark7Orw)
-     
 For new product features, enhancements, roadmap discussions, or to share queries and ideas, visit our [GitHub Discussions](https://github.com/juspay/decision-engine/discussions)
 
 For reporting a bug, please read the issue guidelines and search for [existing and closed issues]. If your problem or idea is not addressed yet, please [open a new issue].
 
 [existing and closed issues]: https://github.com/juspay/decision-engine/issues
 [open a new issue]: https://github.com/juspay/decision-engine/issues/new/choose
- 
 
 ## Contributing
 

config/prometheus.yaml

@@ -27,4 +27,4 @@ scrape_configs:
     # scheme defaults to 'http'.
 
     static_configs:
-      - targets: ["open-router-pg:9094"] # this can be replaced by open-router-local-pg for local setup
+      - targets: ["open-router-pg:9094", "open-router-local:9094"] # this can be replaced by open-router-local-pg for local setup