ConnorYoh 514b020f74 Portal: real Free PDF Editors usage card (self-hosted) (#6919)
## What

Replaces the **mocked** "Free PDF Editors" fleet card on the portal
Usage page with live figures. Cost stays a literal `$0`; any figure that
can't be computed renders **N/A** (never a misleading 0).

| Metric | Self-hosted source |
|---|---|
| **Editors deployed** | total users (`UserRepository.count()`) |
| **Active this month** | distinct `source=WEB` principals active in 30d
(excl. `UI_DATA` polling), clamped ≤ deployed |
| **PDFs edited** | cumulative `PDF_PROCESS` + `FILE_OPERATION` audit
events that are **free UI runs** |

## Why the counting approach

"Free operations = UI tool runs." Two dead ends first:
- **Billing/PAYG is the wrong source** — it *deliberately discards* free
ops (classified `BYPASSED`, no DB row); its tables only hold billable
(API/AI/automation).
- **Raw audit is also wrong** — a tool controller emits `PDF_PROCESS`
for UI **and** API/AI/automation calls, and billable traffic exists on
every tier.

So the count is **audit filtered to free UI runs**. Audit events gain a
`source` column, stamped from the always-on signal
`BillingCategoryClassifier.classify(...) == BYPASSED` (not API-key auth,
no `X-Stirling-Automation` header, not `/api/v1/ai/`) — zero
billing-module coupling. Captured on the request thread
(`AuditService.captureCurrentSource`), carried via MDC in
`ControllerAuditAspect` (same propagation as `requestId`), persisted by
`CustomAuditEventRepository`. The count filters `source = 'WEB'`.

## Endpoint

`GET /api/v1/usage/fleet-stats` — admin-gated, EE-only. Returns `null`
per field when EE auditing is off (→ N/A).

## Frontend

- New `portal/api/fleetStats.ts` → `apiClient.local` (this instance's
backend).
- `FreePdfEditorsCard` rewired to `useAsync(fetchFleetStats)`; preview
badge removed, `null`→"N/A", loading→"—".

## Tests

`:proprietary:build` green — `FleetUsageControllerTest` (4) and
`CustomAuditEventRepositoryTest` (+2 for source-from-MDC) pass; spotless
clean.

## Notes / follow-ups

- `deployed` currently counts all users incl. disabled — refine to
enabled-only later.
- **SaaS** (team-scoped endpoint + a `fleetStats.ts` override) is
deferred to a follow-up riding the portal-SaaS layering PR #6900.
- Depends on EE auditing running at `AuditLevel ≥ STANDARD` for the
audit-derived figures; otherwise they show N/A.
2026-07-08 14:42:44 +00:00
2026-07-01 13:42:26 +01:00
2026-03-25 11:00:40 +00:00
2026-03-25 11:00:40 +00:00

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Stirling PDF - The Open-Source PDF Platform

Stirling PDF is a powerful, open-source PDF editing platform. Run it as a personal desktop app, in the browser, or deploy it on your own servers with a private API. Edit, sign, redact, convert, and automate PDFs without sending documents to external services.

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Key Capabilities

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For a full feature list, see the docs: https://docs.stirlingpdf.com

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