Feat (docs): Add definitive verification guide for smart contracts

[jadonamite]

This PR adds a troubleshooting guide for verifying smart contracts on BaseScan.

Key Topics:

• Constructor Args: Explains how to use cast abi-encode to generate the correct input parameters for verification, resolving the most common "Constructor Arguments Mismatch" error.
• Foundry Integration: Provides the exact forge verify-contract command structure specifically for the Base network (Chain ID 8453).
• Bytecode Mismatches: Details how viaIR, optimizer_runs, and metadata hashes affect the generated bytecode and how to align foundry.toml to fix it.

Why:
Verification is a frequent pain point in developer discords. This guide provides a repeatable, CLI-based workflow to eliminate the guesswork of web-based verification forms.

[cb-heimdall]

🟡 Heimdall Review Status

Requirement	Status	More Info
Reviews	🟡 0/1	Denominator calculation Show calculation 1 if user is bot 0 1 if user is external 0 2 if repo is sensitive 0 From .codeflow.yml 1 Additional review requirements Show calculation Max 0 0 From CODEOWNERS 0 Global minimum 0 Max 1 1 1 if commit is unverified 0 Sum 1