Change 'explicitly assigned' to 'equipment-level override' in organization
settings to better reflect that this counts equipment with custom agent
assignments, not equipment directly assigned to organizations (which doesn't
exist - equipment always belongs to sites).
Adds forms to organization, site, and equipment pages to configure SNMP
community strings with hierarchical fallback.
Changes:
- Organization settings: Add SNMP version and community fields
- Site form: Add SNMP config section with inheritance notice
- Equipment form: Update SNMP fields to show inheritance source and effective values
The UI now shows:
- Where the SNMP config is coming from (equipment, site, organization, or default)
- What the effective values are when inheriting
- Visual indicators for overrides vs inheritance
All forms use the Equipment.get_snmp_config/1 function for consistent
hierarchical resolution.
- Add override warnings (amber) when site/equipment explicitly override defaults
- Show inherited agent names in organization and site forms
- Display equipment assignment breakdown in organization settings
- Make equipment boxes fully clickable on site page (remove View button)
- Add hover effects to equipment boxes for better UX
- Consistent icon usage across all assignment levels
Add three-level agent assignment hierarchy (Equipment > Site > Organization)
allowing flexible agent deployment strategies. Agents now receive only equipment
assigned to them through direct assignment or inheritance from site/organization
defaults.
Key changes:
- Add agent_token_id to Sites table with migration
- Implement get_effective_agent_token/1 for hierarchical resolution
- Add list_agent_polling_targets/1 to return polling targets per agent
- Update API config endpoint to use hierarchical polling targets
- Add agent assignment UI to equipment, site, and organization forms
- Show agent source (direct/site/org/none) in equipment form
- Add equipment count column to agent list
- Update terminology from "poll from server" to "cloud polling"
Tests:
- Add 8 comprehensive tests for list_agent_polling_targets/1
- Add end-to-end test for hierarchical config endpoint
- All 775 tests passing
