feat: surface BMC collection errors in parse-errors panel and event log

When Inspur component.log sections return {"error":"...","code":N} instead
of hardware data, the parser now:
- stores them in AnalysisResult.CollectionErrors (new model field)
- mirrors each one into result.Events with Source="BMC/<section>"
  so the chart viewer event table shows the specific BMC module
- feeds them into /api/parse-errors as bmc_collection_error entries

UI adds a collapsible "Collection diagnostics" panel below the chart
iframe (outside /chart) that appears when /api/parse-errors returns
any items; resets on data clear.

Affected sections in this dump: HDD (1458), PCIe Devices (1458),
Network Adapters (1458), Disk Backplane.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

internal/models/models.go

@@ -16,11 +16,21 @@ type AnalysisResult struct {
 	SourceTimezone string          `json:"source_timezone,omitempty"` // Source timezone/offset used during collection (e.g. +08:00)
 	CollectedAt              time.Time       `json:"collected_at,omitempty"`               // Collection/upload timestamp
 	InventoryLastModifiedAt  time.Time       `json:"inventory_last_modified_at,omitempty"` // Redfish inventory last modified (InventoryData/Status)
-	RawPayloads    map[string]any  `json:"raw_payloads,omitempty"`    // Additional source payloads (e.g. Redfish tree)
-	Events         []Event         `json:"events"`
-	FRU            []FRUInfo       `json:"fru"`
-	Sensors        []SensorReading `json:"sensors"`
-	Hardware       *HardwareConfig `json:"hardware"`
+	RawPayloads      map[string]any   `json:"raw_payloads,omitempty"`      // Additional source payloads (e.g. Redfish tree)
+	CollectionErrors []CollectionError `json:"collection_errors,omitempty"` // BMC-reported failures to collect specific sections
+	Events           []Event           `json:"events"`
+	FRU              []FRUInfo         `json:"fru"`
+	Sensors          []SensorReading   `json:"sensors"`
+	Hardware         *HardwareConfig   `json:"hardware"`
+}
+
+// CollectionError represents a BMC-reported failure to collect a specific data section.
+// Populated by vendor parsers when the source explicitly returns an error response
+// instead of structured data (e.g. {"error":"...","code":1458} in Inspur component.log).
+type CollectionError struct {
+	Section string `json:"section"`
+	Message string `json:"message"`
+	Code    int    `json:"code,omitempty"`
 }
 
 // Event represents a single log event

internal/parser/vendors/inspur/component.go

@@ -56,6 +56,52 @@ func ParseComponentLogEvents(content []byte) []models.Event {
 	return events
 }
 
+// ParseComponentLogCollectionErrors detects BMC-reported collection failures in component.log.
+// When a RESTful section returns {"error":"...","code":N} instead of structured data,
+// the BMC itself failed to collect that subsystem — the parser emits a CollectionError
+// so the UI can surface it explicitly rather than showing an empty section.
+func ParseComponentLogCollectionErrors(content []byte) []models.CollectionError {
+	type bmcErrorResponse struct {
+		Error string `json:"error"`
+		Code  int    `json:"code"`
+	}
+
+	// Map of section name (for display) → regex that captures its JSON payload.
+	// Sections that return arrays use \[ ... \]; object sections use \{ ... \}.
+	// We only probe sections that are expected to have structured hardware data.
+	sections := []struct {
+		name string
+		re   *regexp.Regexp
+	}{
+		{"HDD", regexp.MustCompile(`RESTful HDD info:\s*(\{[^\n]*\})`)},
+		{"PCIe Devices", regexp.MustCompile(`RESTful PCIE Device info:\s*(\{[^\n]*\})`)},
+		{"Network Adapters", regexp.MustCompile(`RESTful Network Adapter info:\s*(\{[^\n]*\})`)},
+		{"Disk Backplane", regexp.MustCompile(`RESTful diskbackplane info:\s*(\{[^\n]*\})`)},
+	}
+
+	text := string(content)
+	var out []models.CollectionError
+	for _, s := range sections {
+		m := s.re.FindStringSubmatch(text)
+		if m == nil {
+			continue
+		}
+		var errResp bmcErrorResponse
+		if err := json.Unmarshal([]byte(m[1]), &errResp); err != nil {
+			continue
+		}
+		if strings.TrimSpace(errResp.Error) == "" {
+			continue
+		}
+		out = append(out, models.CollectionError{
+			Section: s.name,
+			Message: errResp.Error,
+			Code:    errResp.Code,
+		})
+	}
+	return out
+}
+
 // ParseComponentLogSensors extracts sensor readings from component.log JSON sections.
 func ParseComponentLogSensors(content []byte) []models.SensorReading {
 	text := string(content)

internal/parser/vendors/inspur/parser.go

@@ -16,7 +16,7 @@ import (
 
 // parserVersion - version of this parser module
 // IMPORTANT: Increment this version when making changes to parser logic!
-const parserVersion = "1.9"
+const parserVersion = "2.0"
 
 func init() {
 	parser.Register(&Parser{})
@@ -163,6 +163,26 @@ func (p *Parser) Parse(files []parser.ExtractedFile) (*models.AnalysisResult, er
 		// (fan RPM, backplane temperature, PSU summary power, etc.).
 		componentSensors := ParseComponentLogSensors(f.Content)
 		result.Sensors = mergeSensorReadings(result.Sensors, componentSensors)
+
+		// Record sections where BMC itself returned an error instead of data,
+		// and mirror each one into the Events stream so they appear in the log viewer.
+		// Source is set to "BMC/<section>" so the viewer can show the specific module.
+		for _, ce := range ParseComponentLogCollectionErrors(f.Content) {
+			result.CollectionErrors = append(result.CollectionErrors, ce)
+			desc := ce.Message
+			if ce.Code != 0 {
+				desc = fmt.Sprintf("%s (code %d)", ce.Message, ce.Code)
+			}
+			result.Events = append(result.Events, models.Event{
+				ID:          fmt.Sprintf("bmc_collection_error_%s", strings.ToLower(strings.ReplaceAll(ce.Section, " ", "_"))),
+				Timestamp:   time.Time{}, // no timestamp available
+				Source:      fmt.Sprintf("BMC/%s", ce.Section),
+				SensorType:  "bmc_collection_error",
+				EventType:   "Collection Error",
+				Severity:    models.SeverityWarning,
+				Description: desc,
+			})
+		}
 	}
 
 	// Enrich runtime component data from Redis snapshot (serials, FW, telemetry),

internal/server/handlers.go

@@ -854,6 +854,28 @@ func (s *Server) handleGetParseErrors(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
+	// BMC-reported collection failures surfaced by vendor parsers.
+	if result != nil {
+		for _, ce := range result.CollectionErrors {
+			msg := strings.TrimSpace(ce.Message)
+			if msg == "" {
+				continue
+			}
+			detail := ""
+			if ce.Code != 0 {
+				detail = fmt.Sprintf("code %d", ce.Code)
+			}
+			add(parseErrorEntry{
+				Source:   "bmc",
+				Category: "bmc_collection_error",
+				Severity: "warning",
+				Path:     ce.Section,
+				Message:  msg,
+				Detail:   detail,
+			})
+		}
+	}
+
 	sort.Slice(items, func(i, j int) bool {
 		if items[i].Severity != items[j].Severity {
 			// error > warning > info