Add Inception full agentic app

[dkwhitedevil]

This PR adds Inception, a full agentic application built on Cortensor.

The app uses Cortensor Router V1 for decentralized, session-aware inference
and demonstrates controlled AI actions.

[dkwhitedevil]

Inception introduces Inference Escrow, a trust-conditional execution layer for AI built on Cortensor. Instead of releasing AI outputs by default, the system holds inference results in escrow and only releases them after decentralized validation using Cortensor’s Proof of Inference (PoI) and Proof of Useful Work (PoUW). It runs redundant inference across independent nodes, scores outputs via validator pipelines, and produces verifiable evidence bundles before deciding to RELEASE, REJECT, or ESCALATE results. This PR adds Inception as a full agentic application under apps/, demonstrating safer, session-aware AI execution and serving as a PoC submission for Cortensor Hackathon #3.