Add channel test providers for Email, Slack, Teams, and Webhook

- Implemented EmailChannelTestProvider to generate email preview payloads.
- Implemented SlackChannelTestProvider to create Slack message previews.
- Implemented TeamsChannelTestProvider for generating Teams Adaptive Card previews.
- Implemented WebhookChannelTestProvider to create webhook payloads.
- Added INotifyChannelTestProvider interface for channel-specific preview generation.
- Created ChannelTestPreviewContracts for request and response models.
- Developed NotifyChannelTestService to handle test send requests and generate previews.
- Added rate limit policies for test sends and delivery history.
- Implemented unit tests for service registration and binding.
- Updated project files to include necessary dependencies and configurations.

docs/dev/normalized_versions_rollout.md

@@ -19,19 +19,19 @@ This dashboard tracks connector readiness for emitting `AffectedPackage.Normaliz
 | Connector | Owner team | Normalized versions status | Last update | Next action / link |
 |-----------|------------|---------------------------|-------------|--------------------|
 | Acsc | BE-Conn-ACSC | ❌ Not started – mapper pending | 2025-10-11 | Design DTOs + mapper with normalized rule array; see `src/StellaOps.Concelier.Connector.Acsc/TASKS.md`. |
-| Cccs | BE-Conn-CCCS | ❌ Not started – mapper pending | 2025-10-11 | Add normalized SemVer array in canonical mapper; coordinate fixtures per `TASKS.md`. |
-| CertBund | BE-Conn-CERTBUND | ✅ Canonical mapper emitting vendor ranges | 2025-10-14 | Normalized vendor range payloads landed alongside telemetry/docs updates; see `src/StellaOps.Concelier.Connector.CertBund/TASKS.md`. |
+| Cccs | BE-Conn-CCCS | ⚠️ Scheduled – helper ready, implementation due 2025-10-21 | 2025-10-19 | Apply Merge-provided trailing-version helper to emit `NormalizedVersions`; update mapper/tests per `src/StellaOps.Concelier.Connector.Cccs/TASKS.md`. |
+| CertBund | BE-Conn-CERTBUND | ⚠️ Follow-up – translate `versions` strings to normalized rules | 2025-10-19 | Build `bis`/`alle` translator + fixtures before 2025-10-22 per `src/StellaOps.Concelier.Connector.CertBund/TASKS.md`. |
 | CertCc | BE-Conn-CERTCC | ⚠️ In progress – fetch pipeline DOING | 2025-10-11 | Implement VINCE mapper with SemVer/NEVRA rules; unblock snapshot regeneration; `src/StellaOps.Concelier.Connector.CertCc/TASKS.md`. |
 | Kev | BE-Conn-KEV | ✅ Normalized catalog/due-date rules verified | 2025-10-12 | Fixtures reconfirmed via `dotnet test src/StellaOps.Concelier.Connector.Kev.Tests`; `src/StellaOps.Concelier.Connector.Kev/TASKS.md`. |
 | Cve | BE-Conn-CVE | ✅ Normalized SemVer rules verified | 2025-10-12 | Snapshot parity green (`dotnet test src/StellaOps.Concelier.Connector.Cve.Tests`); `src/StellaOps.Concelier.Connector.Cve/TASKS.md`. |
 | Ghsa | BE-Conn-GHSA | ⚠️ DOING – normalized rollout task active | 2025-10-11 18:45 UTC | Wire `SemVerRangeRuleBuilder` + refresh fixtures; `src/StellaOps.Concelier.Connector.Ghsa/TASKS.md`. |
 | Osv | BE-Conn-OSV | ✅ SemVer mapper & parity fixtures verified | 2025-10-12 | GHSA parity regression passing (`dotnet test src/StellaOps.Concelier.Connector.Osv.Tests`); `src/StellaOps.Concelier.Connector.Osv/TASKS.md`. |
-| Ics.Cisa | BE-Conn-ICS-CISA | ❌ Not started – mapper TODO | 2025-10-11 | Plan SemVer/firmware scheme selection; `src/StellaOps.Concelier.Connector.Ics.Cisa/TASKS.md`. |
-| Kisa | BE-Conn-KISA | ✅ Landed 2025-10-14 (mapper + telemetry) | 2025-10-11 | Hangul-aware mapper emits normalized rules; see `docs/dev/kisa_connector_notes.md` for localisation/metric details. |
+| Ics.Cisa | BE-Conn-ICS-CISA | ⚠️ Decision pending – normalize SemVer exacts or escalate scheme | 2025-10-19 | Promote `SemVerPrimitive` outputs into `NormalizedVersions` or file Models ticket by 2025-10-23 (`src/StellaOps.Concelier.Connector.Ics.Cisa/TASKS.md`). |
+| Kisa | BE-Conn-KISA | ⚠️ Proposal required – firmware scheme due 2025-10-24 | 2025-10-19 | Draft `kisa.build` (or equivalent) scheme with Models, then emit normalized rules; track in `src/StellaOps.Concelier.Connector.Kisa/TASKS.md`. |
 | Ru.Bdu | BE-Conn-BDU | ✅ Raw scheme emitted | 2025-10-14 | Mapper now writes `ru-bdu.raw` normalized rules with provenance + telemetry; `src/StellaOps.Concelier.Connector.Ru.Bdu/TASKS.md`. |
 | Ru.Nkcki | BE-Conn-Nkcki | ❌ Not started – mapper TODO | 2025-10-11 | Similar to BDU; ensure Cyrillic provenance preserved; `src/StellaOps.Concelier.Connector.Ru.Nkcki/TASKS.md`. |
 | Vndr.Apple | BE-Conn-Apple | ✅ Shipped – emitting normalized arrays | 2025-10-11 | Continue fixture/tooling work; `src/StellaOps.Concelier.Connector.Vndr.Apple/TASKS.md`. |
-| Vndr.Cisco | BE-Conn-Cisco | ✅ SemVer + vendor extensions emitted | 2025-10-14 | Connector outputs SemVer primitives with `cisco.productId` notes; see `CiscoMapper` and fixtures for coverage. |
+| Vndr.Cisco | BE-Conn-Cisco | ⚠️ Scheduled – normalized rule emission due 2025-10-21 | 2025-10-19 | Use Merge helper to persist `NormalizedVersions` alongside SemVer primitives; see `src/StellaOps.Concelier.Connector.Vndr.Cisco/TASKS.md`. |
 | Vndr.Msrc | BE-Conn-MSRC | ✅ Map + normalized build rules landed | 2025-10-15 | `MsrcMapper` emits `msrc.build` normalized rules with CVRF references; see `src/StellaOps.Concelier.Connector.Vndr.Msrc/TASKS.md`. |
 | Nvd | BE-Conn-NVD | ⚠️ Needs follow-up – mapper complete but normalized array MR pending | 2025-10-11 | Align CVE notes + normalized payload flag; `src/StellaOps.Concelier.Connector.Nvd/TASKS.md`. |