fix(exporter): populate Present on exported Memory/PSU so reanimator re-import keeps them

ReanimatorMemory.Present and ReanimatorPSU.Present were already declared as
*bool fields (matching ReanimatorStorage.Present), but convertMemoryFromDevices
and convertPSUsFromDevices never set them, unlike convertStorageFromDevices.
Exported JSON therefore had "present" for storage but not for memory/PSU
items. Re-importing a previously exported reanimator.json via
parseUploadedSnapshot (a direct json.Unmarshal into models.AnalysisResult)
left Present=false on those two categories, and the existing
IsInstalledInventory()/present-required filters then dropped them on the next
/chart/current render — reproduced live: fresh TSR upload showed Memory and
Power Supplies correctly, re-uploading the exported reanimator.json for the
same result did not.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

bible-local/10-decisions.md

@@ -1270,3 +1270,43 @@ of raw Redfish walk is picked up automatically without a dedicated parser.
   `redfishtree.FindCandidateArchives` + `redfishtree.Build`, not re-implement tar/zip walking.
 - `redfishwalk` is a genuine fallback: it only wins `Detect()` when no dedicated vendor parser
   scores higher on the same archive, per the registry's highest-confidence-wins rule.
+
+---
+
+## ADL-049 — Reanimator export/re-import round trip silently dropped Memory and PSUs
+
+**Date:** 2026-08-11
+**Context:** After ADL-048 fixed Dell iDRAC10 inventory parsing, the same PowerEdge R7715 archive
+still showed no Memory or Power Supplies sections in the `/chart/current` web view, even though
+`internal/exporter.ConvertToReanimator` produced both correctly from a fresh TSR upload (verified via
+direct API calls against the running server). The web view *did* break identically after re-uploading
+a previously downloaded `reanimator.json` export back into LOGPile (the "Reanimator" round trip: export,
+then re-import the same file to inspect/verify it) — reproduced via `POST /api/upload` with that file.
+Root cause: `ReanimatorMemory.Present` and `ReanimatorPSU.Present` (`internal/exporter/reanimator_models.go`)
+were already declared as `*bool` `json:"present,omitempty"`, matching `ReanimatorStorage.Present`, but
+unlike `convertStorageFromDevices` (which sets `Present: &presentValue` on every emitted item),
+`convertMemoryFromDevices` and `convertPSUsFromDevices` never populated that field on the structs they
+built — a plain omission, not a deliberate contract choice. So exported JSON always had `"present": true`
+for storage but no `present` key at all for memory/PSU items. `parseUploadedSnapshot` (handlers.go)
+re-imports a reanimator export via a direct `json.Unmarshal` straight into `models.AnalysisResult`
+(the internal shape, not a dedicated import mapper); with no `present` key to unmarshal, Go's zero
+value left `MemoryDIMM.Present` / `PSU.Present` as `false`. On the next `ConvertToReanimator` call (every
+`/chart/current` render re-converts from the current in-memory result), `MemoryDIMM.IsInstalledInventory()`
+requires `Present == true`, and `convertPSUsFromDevices` has an explicit `if !present { continue }` — so
+every memory/PSU entry, despite carrying full data, got filtered out as "not installed".
+**Decision:** Populate `Present` on `ReanimatorMemory`/`ReanimatorPSU` in `convertMemoryFromDevices`/
+`convertPSUsFromDevices`, mirroring what `convertStorageFromDevices` already does. No changes needed to
+the import path or the `Present`-based filtering — the filtering itself is correct, it was just never
+given the field it needs from a re-imported export.
+**Consequences:**
+- Re-uploading a LOGPile-exported `reanimator.json` now preserves Memory and Power Supplies through the
+  round trip, verified against the live server: upload TSR → export reanimator.json → re-upload it →
+  `/chart/current` still shows both sections.
+- Regression test: `TestConvertToReanimator_MemoryAndPSURoundTripSurvivesReimport` in
+  `internal/exporter/reanimator_converter_test.go` — converts a minimal result, marshals it, unmarshals
+  back into `models.AnalysisResult` (simulating `parseUploadedSnapshot`), and asserts the reconverted
+  output still contains both entries.
+- General lesson for this converter: any `Reanimator*` struct field meant to round-trip through
+  `parseUploadedSnapshot` must actually be populated by its `convert*FromDevices` function — the struct
+  declaring the field is not enough. `Storage` was the only category doing this correctly before this fix;
+  worth auditing PCIe/NIC/GPU conversion the same way if a similar round-trip gap is reported for them.