fix: the RFP team table formatting

[Ayaz-Microsoft]

Purpose

This PR fixes bug(47810) where the RFP team table is properly formatted in AI thinking, but not in the final response

Does this introduce a breaking change?

• Yes
• No

How to Test

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Other Information

[Copilot]

Pull request overview

Fixes Bug 47810 by ensuring collapsed/flattened GitHub Flavored Markdown (GFM) tables are normalized into multi-line table blocks in final responses (not just “AI thinking”), improving UI rendering consistency.

Changes:

• Introduces shared markdown table repair utilities to reflow single-line (collapsed) tables into proper multi-line GFM tables.
• Applies table normalization to final orchestration output and to the final (non-streaming) agent response callback.
• Adds orchestration-focused tests covering normalization behavior for common collapsed-table patterns.

Reviewed changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/tests/backend/orchestration/test_orchestration_manager.py	Adds tests for collapsed-table normalization and injects the real markdown utility module into mocked imports.
src/backend/orchestration/orchestration_manager.py	Normalizes collapsed markdown tables before embedding bare image URLs in the final orchestration response.
src/backend/common/utils/markdown_utils.py	New utility module implementing collapsed-table detection and reflow logic.
src/backend/callbacks/response_handlers.py	Normalizes collapsed markdown tables before sending the final websocket message.
src/backend/api/router.py	Minor formatting/whitespace adjustment only.
conftest.py	Minor formatting cleanup (trailing whitespace / spacing).

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