Fix TS5055 error when running tsc multiple times

[Copilot]

TypeScript was treating generated .d.ts files in build/ as input files on subsequent compilations, causing "cannot write file because it would overwrite input file" errors.

Changes

• Added "include": ["src/**/*"] to tsconfig.json to explicitly scope compilation to source files only

Without an include pattern, TypeScript defaults to discovering all .ts and .d.ts files in the project directory, including build artifacts. This is a standard tsconfig pattern for projects with separate source and output directories.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Fix yarn tsc errors</issue_title>
<issue_description>```
error TS5055: Cannot write file '/home/futpib/code/parser/build/allSettledStream.d.ts' because it would overwrite input file.

## Comments on the Issue (you are @copilot in this section)

<comments>
</comments>

• Fixes Fix yarn tsc errors #55

---

💬 We'd love your input! Share your thoughts on Copilot coding agent in our 2 minute survey.

[coveralls]

Pull Request Test Coverage Report for Build 19258395931

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 4 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.07%) to 94.015%

---

Files with Coverage Reduction	New Missed Lines	%
build/arbitrarilySlicedAsyncInterable.js	2	94.92%
build/arbitraryZip.js	2	94.17%

Totals
Change from base Build 19258166370:	-0.07%
Covered Lines:	7319
Relevant Lines:	7781

---

💛 - Coveralls