Add docs for new pgamdirect bidder

PGAM Direct is PGAM Media LLC's self-hosted SSP adapter. The
adapter merged + shipped in Prebid.js 11.8.0 (prebid/Prebid.js#14763);
this PR lands its documentation page so it shows up in the
bidders list + bidder-data.csv.

Relationship to pgamssp: PGAM Media also maintains pgamssp (legacy
TeqBlaze-hosted). pgamdirect is our new self-hosted path; both
adapters remain actively maintained during the 2026 migration
window. Deprecation of pgamssp will be announced separately.

Maintainer: ppatel@pgammedia.com
GVL: 1353

Author: mastap150

dev-docs/bidders/pgamdirect.md

@@ -0,0 +1,76 @@
+---
+layout: bidder
+title: PGAM Direct
+description: Prebid PGAM Direct Bidder Adapter
+biddercode: pgamdirect
+gvl_id: 1353
+tcfeu_supported: true
+usp_supported: true
+coppa_supported: true
+gpp_sids: tcfeu, usnat, usstate_all, usp
+schain_supported: true
+floors_supported: true
+deals_supported: true
+fpd_supported: true
+media_types: banner, video, native
+userIds: all
+pbjs: true
+pbs: false
+pbs_app_supported: false
+safeframes_ok: true
+multiformat_supported: will-bid-on-any
+sidebarType: 1
+---
+
+### Note
+
+PGAM Direct is PGAM Media LLC's self-hosted SSP adapter, operating against our own OpenRTB 2.6 infrastructure at `rtb.pgammedia.com`. PGAM Media also maintains [`pgamssp`](/dev-docs/bidders/pgamssp.html), our legacy TeqBlaze-hosted integration. Both adapters are actively maintained during the 2026 migration window; new integrations should prefer `pgamdirect`.
+
+### Bid Params
+
+{: .table .table-bordered .table-striped }
+| Name          | Scope    | Description                                                                                           | Example             | Type     |
+|---------------|----------|-------------------------------------------------------------------------------------------------------|---------------------|----------|
+| `orgId`       | required | Publisher slug issued during onboarding. Passed on every bid request so PGAM can route + report.      | `'pgam-acme-pub'`  | `string` |
+| `placementId` | required | Placement reference for the ad slot. Must match a placement configured on the publisher's account.    | `'hdr-300x250'`    | `string` |
+
+### Example
+
+```javascript
+var adUnits = [{
+  code: 'your-ad-unit-id',
+  mediaTypes: {
+    banner: { sizes: [[300, 250], [728, 90]] }
+  },
+  bids: [{
+    bidder: 'pgamdirect',
+    params: {
+      orgId:       'pgam-acme-pub',
+      placementId: 'hdr-300x250'
+    }
+  }]
+}];
+```
+
+### Privacy + identity
+
+- **TCF v2.2** — consent string forwarded on every request; publishers on EU traffic must supply a valid TCF string.
+- **USP / CCPA** — forwarded via `regs.ext.us_privacy`.
+- **GPP** — `tcfeu`, `usnat`, `usstate_all`, and `usp` sections all supported.
+- **COPPA** — honored; flag forwarded on `regs.coppa`.
+- **User IDs** — all EIDs configured in Prebid's User ID module are passed through in `user.ext.eids`, including UID 2.0, ID5, LiveRamp RampID, The Trade Desk EUID, and SharedID.
+- **SupplyChain Object** — full multi-hop schain forwarded with our node appended (asi: `pgamssp.com`, sid: publisher-scoped).
+- **First-party data** — `ortb2` site, user, and content objects merged into the outbound request.
+
+### Features
+
+- **Multi-format imps** — banner, video (instream + outstream), and native on the same ad unit; we bid on any offered format.
+- **Deals (PMP)** — `imp.pmp.deals[]` honored inbound; attention-indexed and curation deals from our marketplace are surfaced outbound.
+- **Floors module** — `bidfloor` + `bidfloorcur` from the Prebid floors module are forwarded; PGAM additionally applies a dynamic rolling-quantile server-side floor.
+- **Take-rate transparency** — every winning `bid.ext.pgam` carries `take_rate_pct`, `gross_cpm_usd`, and `publisher_payout_cpm_usd` for per-transaction reconciliation.
+
+### Contact
+
+- **Maintainer**: `ppatel@pgammedia.com`
+- **Company**: PGAM Media LLC
+- **GVL ID**: 1353