feat: agent UI redesign and version bump to 0.1.18

- Redesign AgentUpdatesEnhanced with tab-based workflow (pending/approved/installing/installed)
- Add AgentStorage component with disk partition table
- Add AgentScanners component for agent health monitoring
- Fix agent removal not refreshing list (cache invalidation)
- Bump agent version to 0.1.18 (enhanced disk detection)
- Update server default version to 0.1.18
- Add command source tracking (system/manual) migration
- Improve Linux disk detection for all physical mount points

aggregator-server/internal/database/migrations/009_add_agent_version_tracking.up.sql

@@ -2,7 +2,7 @@
 -- This enables the hybrid version tracking system
 
 ALTER TABLE agents
-ADD COLUMN current_version VARCHAR(50) DEFAULT '0.1.3',
+ADD COLUMN current_version VARCHAR(50) DEFAULT '0.0.0',
 ADD COLUMN update_available BOOLEAN DEFAULT FALSE,
 ADD COLUMN last_version_check TIMESTAMP DEFAULT CURRENT_TIMESTAMP;
 

aggregator-server/internal/database/migrations/014_add_command_source.up.sql

@@ -0,0 +1,17 @@
+-- Add source field to agent_commands table to track command origin
+-- 'manual' = user-initiated via UI
+-- 'system' = automatically triggered by system operations (scans, installs, etc)
+
+ALTER TABLE agent_commands
+ADD COLUMN source VARCHAR(20) DEFAULT 'manual' NOT NULL;
+
+-- Add check constraint to ensure valid source values
+ALTER TABLE agent_commands
+ADD CONSTRAINT agent_commands_source_check
+CHECK (source IN ('manual', 'system'));
+
+-- Add index for filtering commands by source
+CREATE INDEX idx_agent_commands_source ON agent_commands(source);
+
+-- Update comment
+COMMENT ON COLUMN agent_commands.source IS 'Command origin: manual (user-initiated) or system (auto-triggered)';

aggregator-server/internal/database/queries/commands.go

@@ -21,9 +21,9 @@ func NewCommandQueries(db *sqlx.DB) *CommandQueries {
 func (q *CommandQueries) CreateCommand(cmd *models.AgentCommand) error {
 	query := `
 		INSERT INTO agent_commands (
-			id, agent_id, command_type, params, status, retried_from_id
+			id, agent_id, command_type, params, status, source, retried_from_id
 		) VALUES (
-			:id, :agent_id, :command_type, :params, :status, :retried_from_id
+			:id, :agent_id, :command_type, :params, :status, :source, :retried_from_id
 		)
 	`
 	_, err := q.db.NamedExec(query, cmd)
@@ -183,6 +183,7 @@ func (q *CommandQueries) GetActiveCommands() ([]models.ActiveCommandInfo, error)
 			c.command_type,
 			c.params,
 			c.status,
+			c.source,
 			c.created_at,
 			c.sent_at,
 			c.result,
@@ -244,6 +245,7 @@ func (q *CommandQueries) GetRecentCommands(limit int) ([]models.ActiveCommandInf
 			c.agent_id,
 			c.command_type,
 			c.status,
+			c.source,
 			c.created_at,
 			c.sent_at,
 			c.completed_at,