IDE-28: Add "Your Functions" Button to Formula Editor Keyboard

[harshsomankar123-tech]

Description

This PR implements a "Your functions" button within the Formula Editor's keyboard. This allows users to insert user-defined reporter functions (UserDefinedBricks containing a ReportBrick) directly into their formulas.

Scope of this initial implementation:

• The button is only visible when FEATURE_USER_REPORTERS_ENABLED is true (currently enabled in debug builds).
• Selecting a function inserts a call to USER_DEFINED_BRICK_FUNCTION using the brick's UUID, placing 0 as the default value for any inputs.
• Note: Evaluation of these functions currently returns 0.0. The actual evaluation logic is out of scope for this PR and will be handled in a subsequent task (CATROID-909).

Changes

UI / UX

• Formula Keyboard: Added formula_editor_keyboard_your_functions button in the second row of category buttons.
• Category List: Created a new "Your functions" category in [Insert Class/View Name] that dynamically lists reporter user-defined bricks present in the current sprite.
• Display Format: List items are formatted as label input label(0, 0, ...) where 0 placeholders represent inputs.

Formula Engine

• Enum Extension: Added USER_DEFINED_BRICK_FUNCTION to the Functions enum.
• Token Adaptation: Enhanced [Insert Class Name] to support building token lists for UUID-based user-defined function calls.
• Interpretation: Updated [Insert Class Name] to recognize and interpret the new function type (temporarily hardcoded to return 0.0).

Build & Config

• Feature Flagging: Guarded the new button and its underlying logic with BuildConfig.FEATURE_USER_REPORTERS_ENABLED.
• String Resources: Added formula_editor_your_functions for localization.

Verification

Automated Tests

• ParserFunctionTest.java: Added [Insert Method Name] to verify that the formula parser correctly recognizes the new user-defined function type and safely returns 0.0.

Manual Testing Steps

1. Create a User-Defined Brick (UDB) with a "Report" brick.
2. Open the Formula Editor.
3. Tap "Your functions" on the keyboard.
4. Verify the list correctly displays the UDB reporter.
5. Verify that selecting it inserts the function call into the editor with correct formatting.
6. Verify the "Calculate" button evaluates the formula to 0.

checklist for this pull request

Please review the contributing guidelines and wiki pages of this repository.

• Include the name of the Jira ticket in the PR’s title
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• Confirm that new and existing unit tests pass locally
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[sonarqubecloud]

Quality Gate passed

Issues
4 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud