chore(dev): add InIn3 developer application

dev/InIn3-dev/application.md

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+# Developer Application — InIn3 (Raj)
+
+**Name:** Raj  
+**GitHub:** https://github.com/InIn3  
+**Discord:** aaaron_mk  
+**Timezone:** Asia/Bahrain (UTC+3)  
+**Environment:** Windows 11 + WSL2, Node.js v24, PowerShell 7
+
+## Summary
+Hands-on builder focused on Node.js, PowerShell automation, EVM tooling (wallets, scripts, PM2/systemd ops), and network node workflows. Comfortable debugging process managers, fixing systemd units, and wiring up CLI flows for miners/syncers.
+
+## Skills
+- **Languages/Tools:** Node.js (ESM/CJS), TypeScript (basic), PowerShell, Bash, Git  
+- **EVM stack:** ethers.js, wallets/keys handling, env/.git hygiene  
+- **Ops:** PM2, systemd, log triage, path/permission fixes, Windows↔WSL workflows  
+- **DX:** CLI scaffolding, JSON/ENV validation, README/How-to docs
+
+## Recent Tasks (highlights)
+- Clean PM2 + systemd rollout for user-space node services (no `/root` paths)
+- Repo hygiene: resolved merge markers (`<<<<<<<`), lockfile issues, npm prefix EACCES
+- Identity/bootstrap for miners: wallet key sanitize, node-id placement, token refresh scripts
+- Cross-platform paths: normalized HOME-relative constants for portability
+
+## Interest & Availability
+- **What I want to do:** Developer hunting tasks, small CLI utilities, docs & onboarding fixes, miner/sync helpers  
+- **Availability:** Evenings / weekends (UTC+3), quick iterations
+
+## Contacts
+- **GitHub:** InIn3  
+- **Discord:** aaaron_mk