* fix aviation safety topic filter: remove overly broad exceptions, add cockpit access block words
* fix airline brand protection filter: add identifier words, competitor/ops block words, tighten exceptions
* add example_sentences to all policy templates + topic-filtering and prompt-injection templates
* add policy_endpoints package with AI policy suggester
* update test patch targets for policy_endpoints package move
* add unit tests for AI policy suggester
* add suggestPolicyTemplates networking function
* add AI suggestion modal component
* add Use AI button and template loading callback to PolicyTemplates
* wire up AI suggestion modal in policies page
* fix policy_templates_backup.json path after package move
* add estimated_latency field to all policy templates
* use llm_router and accept model parameter in ai_policy_suggester
* add model param to suggest templates endpoint
* pass model param in suggestPolicyTemplates
* polish ai suggestion modal: model selector, auto-growing textareas, latency badges
* add template queue for processing multiple AI-suggested templates
* show template progress badge in guardrail selection modal