fix(javascript): classify application input selection failures by cause

analyze_javascript_application reported every input-selection problem as
an artifact fault:

- a missing input path: "Artifact could not be read or written", with no
  path or reason;
- an unreadable selected directory: the same generic io failure;
- a regular file that is neither a directory nor an .asar, and a
  --artifact-format that contradicts the selection: "Artifact is invalid
  or has changed. Get a fresh copy and try again."

Report a missing path as an invalid input_path, an unreadable selection
as access_denied, a non-directory non-.asar file as unsupported_target
with the accepted inputs as remediation, and a contradicting format as an
invalid format with the observed kind as expected value. Failures inside
a selected artifact keep their existing classification.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/boundary/cli/javascriptApplicationJsonOutput.test.ts

@@ -99,8 +99,8 @@ cliTest(
       ],
     });
     expect(output.json).toMatchObject({
-      code: "artifact_operation_failed",
-      details: { reason: "io" },
+      code: "invalid_request",
+      details: { issues: [{ path: ["input_path"], reason: "invalid_value" }] },
     });
   },
 );