chore: improve session dx

[joepegler]

Abstracts away storageClient + sessionIDInfo.

Users now only need to keep the users smartAccountAddress when returning to use a session

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PR-Codex overview

The focus of this PR is to update version to 4.4.3, enhance session storage abstraction, and improve testing workflows.

Detailed summary

• Updated version to 4.4.3
• Enhanced session storage abstraction
• Improved testing workflows with new environment variables
• Refactored file storage handling for sessions
• Added new utility functions for testing and node backend detection

The following files were skipped due to too many changes: src/modules/sessions/batch.ts, src/modules/sessions/sessionSmartAccountClient.ts, src/modules/utils/Helper.ts, tests/modules/write.test.ts

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[github-actions[bot]]

size-limit report 📦

Path	Size
core (esm)	53.95 KB (+0.48% 🔺)
core (cjs)	59.11 KB (+0.79% 🔺)
account (tree-shaking)	51.97 KB (+0.04% 🔺)
bundler (tree-shaking)	2.39 KB (0%)
paymaster (tree-shaking)	2.33 KB (0%)
modules (tree-shaking)	40.6 KB (+0.03% 🔺)