Make Headers and Rows public properties with cache clearing, add AddRows method

[Copilot]

• Make Headers property public with private backing field _headers and setter that clears cache
• Make Rows property public with private backing field _rows and setter that clears cache
• Add AddRows method that allows adding multiple rows at once
• Update existing unit tests if needed
• Add unit tests for new Headers property (5 tests)
• Add unit tests for new Rows property (5 tests)
• Add unit tests for new AddRows method (5 tests)
• Build and verify all tests pass (46 tests passing)
• Run code review and address feedback (reviewed - existing design is intentional)
• Run security scan (CodeQL - no alerts)
• Address PR feedback:
  • Updated Headers property summary to indicate it's a single optional top row
  • Updated AddRows to init Rows list when null
  • Updated all unit tests to use ToTable() instead of ToString()
  • Allow empty rows in AddRows (removed ?.Any() check)
  • Added null check for _rows in AddRow method
  • Added simple ToString unit test
  • Renamed unit tests to match the functions being tested (ToString_ -> ToTable_)

Original prompt

Make the headers and rows property public fields with backing private foelds and in the setter clear the cache. Also make an extra method AddRows thatvallows for multiple rows to be added. Also update the uni tests .

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[BrunoVT1992]

@copilot add to the summary that this is a single optional top row

[Copilot]

Updated the summary to: "Gets or sets the headers of the table. This is a single optional top row." (74246ec)

[BrunoVT1992]

@copilot use the ?.Any method. Also init the Rows list when it is null.

[Copilot]

Updated to use rows?.Any() == true and added null check to initialize _rows if null. (74246ec)

[BrunoVT1992]

Use the ToTable method in all the unit tests instead of the .ToString

[Copilot]

Use the ToTable method in all the unit tests instead of the .ToString

Updated all unit tests to use ToTable() instead of ToString(). (74246ec)

[BrunoVT1992]

@copilot Adding an emty row is allowed

[Copilot]

Removed the ?.Any() check so empty rows are allowed. Now only checks for null on the rows parameter. (f5cae2d)

[BrunoVT1992]

Add 1 simple unit test for ToString.
In the AddRow method check if _rows is null init the list.

[Copilot]

Add 1 simple unit test for ToString.
In the AddRow method check if _rows is null init the list.

Added a simple ToString unit test and added null check for _rows in the AddRow method. (5286a5d)

[BrunoVT1992]

Check and rename each unit test name. According to the functions bwing trsted .

[Copilot]

Check and rename each unit test name. According to the functions bwing trsted .

Renamed unit test methods that were calling ToTable() from ToString_* to ToTable_* to match the functions being tested. (3a888dd)