feat(scanner): add scanner budget progress controls (#3185)

Co-authored-by: Henry Guo <marshawcoco@users.noreply.github.com>

crates/obs/src/metrics/schema/entry/metric_name.rs

@@ -279,6 +279,13 @@ pub enum MetricName {
     ScannerVersionsScanned,
     ScannerLastActivitySeconds,
     ScannerActivePaths,
+    ScannerOldestActivePathAgeSeconds,
+    ScannerCurrentSetScanConcurrencyLimit,
+    ScannerCurrentSetScansQueued,
+    ScannerCurrentSetScansActive,
+    ScannerCurrentDiskScanConcurrencyLimit,
+    ScannerCurrentDiskBucketScansQueued,
+    ScannerCurrentDiskBucketScansActive,
     ScannerBucketScansFailed,
     ScannerThrottleIdleModeEnabled,
     ScannerThrottleSleepFactor,
@@ -286,6 +293,8 @@ pub enum MetricName {
     ScannerYieldEveryNObjects,
     ScannerCycleIntervalSeconds,
     ScannerCycleMaxDurationSeconds,
+    ScannerCycleMaxObjects,
+    ScannerCycleMaxDirectories,
     ScannerBitrotCycleEnabled,
     ScannerBitrotCycleSeconds,
     ScannerCurrentCycle,
@@ -308,6 +317,7 @@ pub enum MetricName {
     ScannerCurrentCycleUsageSaves,
     ScannerCurrentScanMode,
     ScannerLastCycleResult,
+    ScannerLastCyclePartialReason,
     ScannerLastCycleDurationSeconds,
     ScannerLastCycleObjectsScanned,
     ScannerLastCycleDirectoriesScanned,
@@ -326,6 +336,7 @@ pub enum MetricName {
     ScannerLastCycleUsageSaves,
     ScannerFailedCycles,
     ScannerPartialCycles,
+    ScannerPartialCyclesByReason,
 
     // CPU system-related metrics
     SysCPUAvgIdle,
@@ -667,6 +678,13 @@ impl MetricName {
             Self::ScannerVersionsScanned => "versions_scanned".to_string(),
             Self::ScannerLastActivitySeconds => "last_activity_seconds".to_string(),
             Self::ScannerActivePaths => "active_paths".to_string(),
+            Self::ScannerOldestActivePathAgeSeconds => "oldest_active_path_age_seconds".to_string(),
+            Self::ScannerCurrentSetScanConcurrencyLimit => "current_set_scan_concurrency_limit".to_string(),
+            Self::ScannerCurrentSetScansQueued => "current_set_scans_queued".to_string(),
+            Self::ScannerCurrentSetScansActive => "current_set_scans_active".to_string(),
+            Self::ScannerCurrentDiskScanConcurrencyLimit => "current_disk_scan_concurrency_limit".to_string(),
+            Self::ScannerCurrentDiskBucketScansQueued => "current_disk_bucket_scans_queued".to_string(),
+            Self::ScannerCurrentDiskBucketScansActive => "current_disk_bucket_scans_active".to_string(),
             Self::ScannerBucketScansFailed => "bucket_scans_failed".to_string(),
             Self::ScannerThrottleIdleModeEnabled => "throttle_idle_mode_enabled".to_string(),
             Self::ScannerThrottleSleepFactor => "throttle_sleep_factor".to_string(),
@@ -674,6 +692,8 @@ impl MetricName {
             Self::ScannerYieldEveryNObjects => "yield_every_n_objects".to_string(),
             Self::ScannerCycleIntervalSeconds => "cycle_interval_seconds".to_string(),
             Self::ScannerCycleMaxDurationSeconds => "cycle_max_duration_seconds".to_string(),
+            Self::ScannerCycleMaxObjects => "cycle_max_objects".to_string(),
+            Self::ScannerCycleMaxDirectories => "cycle_max_directories".to_string(),
             Self::ScannerBitrotCycleEnabled => "bitrot_cycle_enabled".to_string(),
             Self::ScannerBitrotCycleSeconds => "bitrot_cycle_seconds".to_string(),
             Self::ScannerCurrentCycle => "current_cycle".to_string(),
@@ -696,6 +716,7 @@ impl MetricName {
             Self::ScannerCurrentCycleUsageSaves => "current_cycle_usage_saves".to_string(),
             Self::ScannerCurrentScanMode => "current_scan_mode".to_string(),
             Self::ScannerLastCycleResult => "last_cycle_result".to_string(),
+            Self::ScannerLastCyclePartialReason => "last_cycle_partial_reason".to_string(),
             Self::ScannerLastCycleDurationSeconds => "last_cycle_duration_seconds".to_string(),
             Self::ScannerLastCycleObjectsScanned => "last_cycle_objects_scanned".to_string(),
             Self::ScannerLastCycleDirectoriesScanned => "last_cycle_directories_scanned".to_string(),
@@ -714,6 +735,7 @@ impl MetricName {
             Self::ScannerLastCycleUsageSaves => "last_cycle_usage_saves".to_string(),
             Self::ScannerFailedCycles => "failed_cycles".to_string(),
             Self::ScannerPartialCycles => "partial_cycles".to_string(),
+            Self::ScannerPartialCyclesByReason => "partial_cycles_by_reason".to_string(),
 
             // CPU system-related metrics
             Self::SysCPUAvgIdle => "avg_idle".to_string(),