fix: update Travel_planner application backend with the latest jaseci stack

[Hirudika4]

• Updated the initialization of the Model in both agent_brain.jac and agent_core.jac to use the config parameter for setting verbose instead of a direct argument, aligning with the latest stack.
• Refactored agent traversal and connection syntax throughout agent_core.jac and main.jac to use the new ?:Type pattern instead of the deprecated '?Type pattern. Update `root with new type Root.
• Replaced the jac-cloud dependency with jac-scale in requirements.txt.

[Copilot]

Pull request overview

This PR updates the Travel_planner application backend to align with the latest Jaseci stack by migrating to new syntax patterns and updated dependencies. The changes involve transitioning from deprecated Jac syntax patterns to the newer ?:Type filter syntax and updating the dependency from jac-cloud to jac-scale.

Changes:

• Updated Model initialization to use config parameter for verbose setting
• Refactored traversal syntax from deprecated `?Type pattern to ?:Type pattern throughout the codebase
• Replaced jac-cloud with jac-scale in requirements.txt
• Updated ability triggers from `root entry to Root entry

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
Travel_planner/requirements.txt	Replaced jac-cloud dependency with jac-scale
Travel_planner/BE/agent_brain.jac	Updated Model initialization to use config dict for verbose parameter
Travel_planner/BE/agent_core.jac	Updated Model initialization and refactored traversal syntax from `?Type to ?:Type pattern
Travel_planner/BE/main.jac	Updated ability trigger syntax and refactored traversal filters to use ?:Type pattern

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[Copilot]

Syntax inconsistency: The type filter should be inside the brackets, not outside. Line 13 uses [-->(?:Session)] (correct), but this line uses [-->](?:BaseAgent). This should be [-->(?:BaseAgent)] to match the syntax on line 13 and throughout agent_core.jac (line 202).

Suggested change

	if [-->](?:BaseAgent) {
	if [-->(?:BaseAgent)] {