feat: Add PHONY targets for Anvil and Docs in Makefile

[0xRiz0]

PR Description

Summary

This PR introduces new .PHONY targets to the makefile for local development environments and documentation workflows. These additions improve clarity, maintainability, and usability of developer commands by ensuring common tasks are properly declared as phony.

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Changes

1. Anvil Targets

   • Added .PHONY entries for:
     • anvil
     • anvil-fork
     • anvil-polygon
   • Ensures local blockchain development and forked environments are correctly marked as non-file targets.
   • Prevents issues if files or directories happen to share the same names.

2. Documentation Targets

   • Added .PHONY entries for:
     • docs
     • docs-serve
   • Improves reliability of documentation generation and serving commands.

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Why

• Declaring frequently used commands as phony avoids conflicts with existing files/directories.
• Provides better developer experience by making targets more predictable and explicit.
• Helps enforce consistent behavior across environments (local dev, forks, polygon testing, and docs hosting).

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Impact

• ✅ No breaking changes.
• ✅ Cleaner build and workflow structure.
• ⚡ Sets foundation for expanding automation around local blockchain testing and documentation delivery.

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Next Steps

• Add implementations for the new targets (anvil, anvil-fork, anvil-polygon, docs, docs-serve) if not already defined elsewhere in the makefile.
• Consider extending docs-serve with live reload for smoother contributor workflows.