Implement better formatting for low cost values

[Schrolli91]

Context

Improved cost display in KiloCode Extension: For costs above $0.05, keep 2 decimal places. For lower costs, show 4 decimal places to better see small amounts.. Affects all relevant components (KiloTaskHeader, TaskItemFooter, CondensationResultRow, TaskHeader).

Implementation

• Added new function formatCost in costFormatting.ts:
  (cost === 0 || cost > 0.05) ? cost.toFixed(2) : cost.toFixed(4);.

• Replaced all toFixed(2) calls with formatCost(...).

• Tests edited as well.

No breaking changes.

Screenshots

None

How to Test

• Start extension and run a task with API provider (e.g. small request for cost <0.05 USD).
• Check task header and history: Small costs show 4 decimals (e.g. $0.0023), larger 2 (e.g. $1.23).

[changeset-bot]

🦋 Changeset detected

Latest commit: 4f2a7da

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
kilo-code	Patch

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[Schrolli91]

Is there anything to do left, to get a short review?

[kevinvandijk]

Thanks! Lgtm!

[Schrolli91]

Just saw you took over the test fixes while I was working on them. Looks like I also missed a few spots for the helper refactor. Thanks for jumping in @kevinvandijk ! :)

[kevinvandijk]

Just saw you took over the test fixes while I was working on them. Looks like I also missed a few spots for the helper refactor. Thanks for jumping in @kevinvandijk ! :)

I think some of them broke due to me merging main in as well :)

Btw, if you want to. Please reach out to me on Discord (Kevin) with the email address you used to sign up for Kilo so I can grant you some credits as appreciation for your first PR!