Fix version bump to 0.1.26

[devin-ai-integration]

Fix version bump to 0.1.26

Summary

This PR fixes a release issue where version 0.1.26 was accidentally created without updating the version number in pyproject.toml, which still showed 0.1.25.

What was done:

• Deleted the incorrect 0.1.26 release and tag from GitHub
• Updated pyproject.toml version from 0.1.25 → 0.1.26
• Verified tests still pass (93 passed, 2 skipped)

This ensures the package version in pyproject.toml matches the intended release version, which is critical for the Python publishing workflow that reads the version from this file.

Review & Testing Checklist for Human

• Verify that 0.1.26 is the correct intended version number for the AWS Bedrock model cost tracking release
• Confirm the previous 0.1.26 release and tag were successfully deleted from GitHub
• Test the complete release process: merge this PR, create new 0.1.26 release, verify PyPI publishes correctly

---

Diagram

%%{ init : { "theme" : "default" }}%%
graph TD
    pyproject["pyproject.toml<br/>version: 0.1.25 → 0.1.26"]:::major-edit
    workflow[".github/workflows/<br/>python-publish.yml"]:::context
    release["GitHub Release<br/>0.1.26"]:::context
    pypi["PyPI Package<br/>tokencost 0.1.26"]:::context
    
    pyproject --> workflow
    workflow --> pypi
    release --> workflow
    
    subgraph Legend
        L1[Major Edit]:::major-edit
        L2[Minor Edit]:::minor-edit  
        L3[Context/No Edit]:::context
    end

classDef major-edit fill:#90EE90
classDef minor-edit fill:#87CEEB
classDef context fill:#FFFFFF

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Notes

• The 0.1.26 release contained significant changes (AWS Bedrock model cost tracking) that justify the version bump
• Tests pass successfully, confirming the version change doesn't break functionality
• This is a critical hotfix to align the package version with the intended release
• Session requested by Alex (@areibman): https://app.devin.ai/sessions/1d9b0dab09e648c19c4e5ca937164b60

[devin-ai-integration]

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