[Bug] Live Report authoring tool bundle is missing at runtime

@yash-nisar is already working on this.

Since Jul 29, 2026.

## Issue Description

The enabled `live_report_authoring` system skill advertises `SaveReport`, `ListReports`, `GetReport`, `ListConnectors`, and `ListConnectorTools`, but those tools are unavailable at runtime in a newly created Live Report authoring thread.

## Steps to Reproduce

1. Confirm `live_report_authoring` is enabled and its skill metadata lists the five Live Report tools.
2. Create a new authoring thread through the supported `.../reports/authoring-thread` flow.
3. Ask the agent to load `live_report_authoring` and create or list a report.

## Actual Behavior

Every Live Report tool invocation fails with `Tool '' is not available`. The general tool inventory omits definitions for all five tools, even when explicit enabled overrides are present. Disabling and re-enabling the skill does not restore the tool bundle.

This reproduced with both GitHub Copilot GPT-5.6 Sol and Anthropic Claude Opus 5, so it does not appear model-specific.

## Expected Behavior

Starting a Live Report authoring thread should attach the five tools declared by the enabled system skill so the report can be discovered, authored, and saved.

## Impact

Live Report creation and updates are completely blocked. The agent can author and validate HTML but cannot persist it to Operations Hub.

## Evidence

- Skill catalog: enabled system skill lists all five expected tools.
- Tool catalog: definitions for the five tools are absent.
- Fresh authoring thread created by the official authoring-thread endpoint still cannot invoke them.
- Resetting the individual skill override did not repair registration.

Private diagnostics and identifiers are available through an approved internal channel if needed.