[Repo Assist] Add YieldFromFinal overloads for F# 10 compatibility

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🤖 This is an automated PR from Repo Assist.

Closes #62

Summary

The F# 10 compiler (dotnet/fsharp#18804) introduces YieldFromFinal as a new builder method. When yield! or do! appears in a tail-call position within a computation expression, the compiler emits a call to YieldFromFinal instead of YieldFrom. Without these overloads, taskSeq expressions would fail to compile under F# 10.

This PR adds YieldFromFinal overloads to the taskSeq builder mirroring the existing priority structure (LowPriority, MediumPriority, HighPriority).

Changes

TaskSeqBuilder.fs / .fsi

Priority	Method	Behaviour
MediumPriority	YieldFromFinal(IAsyncEnumerable<'T>)	Delegates to YieldFrom
MediumPriority	YieldFromFinal(seq<'T>)	Delegates to YieldFrom
HighPriority	YieldFromFinal(Task(unit))	Bind(task, fun () -> Zero())
HighPriority	YieldFromFinal(Async(unit))	Bind(computation, fun () -> Zero())
LowPriority	YieldFromFinal(^TaskLike)	Generic unit-returning awaitable (inline, [(NoEagerConstraintApplication)])

The HighPriority and LowPriority overloads are needed because the F# 10 compiler also calls YieldFromFinal for do! in tail position (e.g. the last expression do! someTask() in a taskSeq).

Why not the full tailall transfer?

The tailall transfer optimization — where YieldFromFinal permanently hands off all future MoveNextAsync calls to the inner enumerator — was explored and reverted. The problem is that F# 10 also calls YieldFromFinal for yield! inside loop body lambdas (e.g. for c in source do yield! f c), where yield! f c is tail-call within the loop body fun c -> .... Activating a tail transfer in that case would lose all but the last iteration's elements. There is no way at YieldFromFinal call time to distinguish a genuine final tail call from a within-loop tail call.

The tailall transfer optimization can be revisited in a future PR with a more targeted approach.

Test Status

✅ Build succeeded (dotnet build src/FSharp.Control.TaskSeq.sln -c Release)
✅ All tests passed: 3850 passed, 2 skipped, 0 failed (dotnet test Release)
✅ Formatting checked with dotnet fantomas .

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[dsyme]

Added the F# bug about YieldFromFinal here: dotnet/fsharp#19402

Closing as there's no point implementing this if it's not working properly