ESD-1633-fix(wasm): stop SplitArgs deleting a literal megaport argument

[Phil-Browne]

Fixes a WASM-only bug where SplitArgs dropped any argument equal to megaport, megaport-cli, or ./megaport-cli, not just a leading program name. That meant a command like ports update <uid> --name megaport silently lost the flag value.

• Only strip a program-name token when it's the first token, leaving later flag values and positionals intact.
• Added test cases covering a megaport-valued flag, a positional, and a leading token combined with a later literal value.

Ran go build, go test ./..., the WASM build, WASM package tests, and lint locally; all pass.

[Copilot]

Pull request overview

Fixes a WASM-only argument parsing bug in internal/wasm.SplitArgs where literal values equal to megaport, megaport-cli, or ./megaport-cli were incorrectly dropped even when they appeared as flag values or positional arguments. This aligns SplitArgs with how the WASM entrypoint (main_wasm.go) constructs the final argv (it prepends the program name itself).

Changes:

• Update SplitArgs to strip the program name only when it appears as the first token.
• Add regression tests covering megaport as a flag value and positional, plus the “leading program name + later literal value” case.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
internal/wasm/wasm.go	Restricts program-name stripping to the first token to prevent dropping legitimate argument values.
internal/wasm/wasm_test.go	Adds targeted test cases to prevent regressions for literal megaport values in non-leading positions.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.58%. Comparing base (9ba6a3b) to head (e2e9c47).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #520      +/-   ##
==========================================
+ Coverage   78.57%   78.58%   +0.01%     
==========================================
  Files         192      192              
  Lines       18522    18522              
==========================================
+ Hits        14553    14555       +2     
+ Misses       2904     2902       -2     
  Partials     1065     1065              

see 1 file with indirect coverage changes

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[penzeliz-megaport]

Reviewed for correctness; no findings. LGTM.