feat: add 15 Funge-98 fingerprints and fix test assertion argument order

[Copilot]

Implements 15 missing Funge-98 fingerprints and fixes test failures caused by reversed Assert argument order in EVAR and HRTI test suites.

New Fingerprints

• 3DSP (0x33445350) — 3D space operations: vector math, matrix transforms (A B C D L M N P R S T U V X Y Z)
• CPLI (0x43504C49) — complex integer arithmetic (A D M O S V)
• DIRF (0x44495246) — directory operations: make/change/remove (C M R)
• EVAR (0x45564152) — environment variable get/set/enumerate (G N P V)
• FPDP (0x46504450) — double-precision float math (A B C D E F G H I K L M N P Q S T V X Y)
• FPRT (0x46505254) — formatted print for numeric and string types (D F I L S)
• FPSP (0x46505350) — single-precision float math, same instruction set as FPDP
• HRTI (0x48525449) — high-resolution timer: mark/measure per IP (E G M S T)
• ICAL (0x4943414C) — INTERCAL-style bitwise ops and thread control (A F I N O R S X)
• JSTR (0x4A535452) — jump-relative string get/put (G P)
• ORTH (0x4F525448) — Orthagonal-mode cell I/O and IP control (A E G O P S V W X Y Z)
• REFC (0x52454643) — vector reference storage (D R)
• SETS (0x53455453) — integer set operations (A C D G I M P R S U W X Z)
• TERM (0x5445524D) — ANSI terminal cursor/screen control (C D G H L S U)
• TOYS (0x544F5953) — full A–Z toybox: space fill/copy/shift, stack arithmetic, directional helpers

All fingerprints registered in FingerprintsOptions and Esolang.Funge.slnx. README.md fingerprint table and CHANGELOG.md updated accordingly.

Test Fixes (EVAR & HRTI)

MSTest v3 assertion methods take (lowerBound, value) / (upperBound, value) — the second argument is the value under test. Several assertions had the arguments reversed, causing spurious failures despite correct implementations:

// ❌ Before — asserts 0 > count (always fails when count > 0)
Assert.IsGreaterThan(ctx.Pop(), 0);

// ✅ After — asserts count > 0
Assert.IsGreaterThan(0, ctx.Pop());

Same inversion corrected for IsGreaterThanOrEqualTo (HRTI elapsed time, granularity, cloned mark) and IsLessThan (microsecond upper-bound check).

Original prompt

Task

Implement the PyFunge fingerprints (https://pythonhosted.org/PyFunge/languages.html#supported-fingerprints) not yet in this repo on top of the feature/fingerprints branch. Read AGENT.md and existing fingerprints (e.g. Fingerprints.Roma/, Fingerprints.Strn/, Fingerprints.Time/) before starting.

Already implemented (do not re-implement)

NULL, ARRY, BASE, BOOL, DATE, FILE, FIXP, FRTH, IMTH, INDV, LONG, MODU, RAND, ROMA, STCK, STRN, TIME

Fingerprints to implement (15 total)

For each fingerprint, create: library project + source file + README.md, test project + test file, and register in Interpreter/FingerprintsOptions.cs. Also update Esolang.Funge.slnx, README.md, CHANGELOG.md.

Follow the same project structure as existing fingerprints (see Fingerprints.Roma/ as the simplest template). All projects target netstandard2.0;netstandard2.1;net10.0. Test projects target net48;net8.0;net9.0;net10.0 on Windows, net8.0;net9.0;net10.0 on other OSes.

New abstraction interface needed

Add Abstractions/IFungePositionContext.cs (needed by ORTH, TOYS, ICAL):

namespace Esolang.Funge;
public interface IFungePositionContext
{
    (int X, int Y, int Z) Position { get; set; }
    (int X, int Y, int Z) Delta { get; set; }
}

Available optional capability interfaces (check with ctx is IFoo foo, reflect if missing)

• IFungeOutputContext: WriteString(string)
• IFungeInputContext: ReadLine()
• IFungeVectorContext: PopVector()→(X,Y,Z), PushVector(x,y,z)
• IFungeSpaceContext: Dimensions, GetCell(x,y,z), SetCell(x,y,z,value)
• IFungeStorageOffsetContext: StorageOffset→(X,Y,Z)
• IFungeStackContext: StackDepth
• IFungeInstructionPointerContext: InstructionPointerId
• IFungeInstructionPointerLifecycle: OnInstructionPointerCloned, OnInstructionPointerTerminated
• IFungeRandomContext (see Rand fingerprint)
• IFungePositionContext (new, add to Abstractions)

0gnirts helper pattern (copy from STRN)

Pop: read chars until 0. Push: push 0 then chars left-to-right.

FPSP bit encoding

BitConverter.SingleToInt32Bits(float) / Int32BitsToSingle(int) — one cell per float.

FPDP bit encoding

Two cells: push lower 32 bits first, upper 32 bits second. Pop upper first, then lower.

---

Fingerprint Specifications

1. DIRF (0x44495246) — Directory functions

Namespace: Esolang.Funge.Fingerprints.Dirf, Class: DirectoryFingerprint
Ref: https://pythonhosted.org/PyFunge/fingerprint/DIRF.html

• C: pop path_s → Directory.SetCurrentDirectory; reflect on exception
• M: pop path_s → Directory.CreateDirectory; reflect on exception
• R: pop path_s → Directory.Delete; reflect on exception

2. TERM (0x5445524D) — Terminal extension

Namespace: Esolang.Funge.Fingerprints.Term, Class: TerminalFingerprint
Ref: https://pythonhosted.org/PyFunge/fingerprint/TERM.html
Uses ANSI escapes via IFungeOutputContext (reflect if unavailable):

• C: WriteString("\x1b[2J")
• H: WriteString("\x1b[H")
• G: pop c, pop r → WriteString($"\x1b[{r+1};{c+1}H")
• D: pop n → n>0: "\x1b[{n}B", n<0: "\x1b[{-n}A", n==0: no-op
• U: pop n → n>0: "\x1b[{n}A", n<0: "\x1b[{-n}B", n==0: no-op
• L: WriteString("\x1b[K")
• S: WriteString("\x1b[J")

3. REFC (0x52454643) — Referenced Cells Extension

Namespace: Esolang.Funge.Fingerprints.Refc, Class: ReferencedCellsFingerprint
Ref: https://pythonhosted.org/PyFunge/fingerprint/REFC.html
Global table (shared across IPs): Dictionary<int,( int X,int Y,int Z)>, auto-increment ref.

• R: pop vector_v (PopVector()) → store; push new ref int
• D: pop ref → PushVector stored vector; reflect if invalid
  Reflect if IFungeVectorContext unavailable.

4. CPLI (0x43504C49) — Complex Integer extension

Namespace: Esolang.Funge.Fingerprints.Cpli, Class: ComplexIntegerFingerprint
Ref: https://pythonhosted.org/PyFunge/fingerprint/CPLI.html
Stack layout: real (lower), imag (upper). For binary: pop d(imag2), c(real2), b(imag1), a(real1). Push result real then imag.

• A: (a+bi)+(c+di) → push (a+c), (b+d)
• S: (a+bi)-(c+di) → push (a-c), (b-d)
• M: (a+bi)*(c+di) → push (ac-bd), (ad+bc)
• D: (a+bi)/(c+di) truncated; reflect if c==0&&d==0. r=(ac+bd)/(cc+dd), i=(bc-ad)/(cc+dd)
• O: pop b(imag), pop a(real) → print via IFungeOutputContext; reflect if unavailable
• V: pop b, pop a → push (int)Math.Sqrt(aa+bb)

5. EVAR (0x45564152) — Environment variables extension

Namespace: Esolang.Funge.Fingerprints.Evar, Class: EnvironmentVariablesFingerprint
Ref: https://pythonhosted.org/PyFunge/fingerprint/EVAR.html

• G: pop name_s → push value_s (empty string if not found)
• N: push Environment.GetEnvironmentVariables().Count
• P: pop namevalue_s (format "name=value") → setenv; reflect if no '='
• V: pop i → push i-th env var sorted by key as "name=value" 0gnirts; reflect if out of range

6. HRTI (0x48525449) — High-Resolution Timer Interface

Namespace: Esolang.Funge.Fingerprints.Hrti, Class: `HighResTim...

[juner]

@copilot dotnet test は実施されましたでしょうか？ 現在下記のテストでNGが出ています。
対応宜しくお願いします。 もしも 仕様に修正が必要であれば pyfunge ではなく esolang wiki や 元となる archive の資料も参照して README.md に追記して修正してください。

• Fingerprints.Evar.Tests
  • Instruction_N_PushesCount (net48 / net8.0 / net9.0 / net10.0)
• Fingerprints.Hrti.Tests
  • Instruction_M_T_MeasuresElapsed (net48 / net8.0 / net9.0 / net10.0)
  • Instruction_S_PushesSecondMicroseconds (net48 / net8.0 / net9.0 / net10.0)
  • OnCloned_CopiesMarkToChild (net48 / net8.0 / net9.0 / net10.0)