Text inputs in test case drawer auto-switch type

[mmabrouk]

In the playground test case drawer, entering values like False or numbers while the selector is set to Text incorrectly changes the variable type.

When the selector is on Text, values such as False should stay strings, for example "False". Type switching should only happen when editing the raw JSON or YAML, where false should be interpreted as a boolean.

This should also apply to numbers entered while the selector is set to Text.

[linear-code]

AGE-3819

[IshaanAggrawal]

@mmabrouk I want a clarification so what if i write "false" or "5" should they now treated as a string in json and yaml and false and 5 should be boolean and number respectively

[mmabrouk]

I watched the demo in your PR and it has exactly the right behavior. Great job!

[NamHT4Devlop]

Hi, I'd like to work on this!

Root cause: TestcaseDrillInFieldRenderer routes all text-like views through TextEditor, which calls inferPrimitiveFromText on every change. This function converts "False" → false (boolean) and "42" → 42 (number) regardless of the active view mode — so the type chip flips even when the selector is explicitly set to Text.

Fix: Add a noTypeInference flag to TextEditor. When the view mode is "text" or "markdown", the handler stores the raw string directly instead of running it through inferPrimitiveFromText. JSON and YAML modes are unaffected — they already use their own structured parsing through CodeEditor.

PR: #4705