Add MongoDB storage library and update acceptance tests with deterministic stubs

- Created StellaOps.Notify.Storage.Mongo project with initial configuration.
- Added expected output files for acceptance tests (at1.txt to at10.txt).
- Added fixture input files for acceptance tests (at1 to at10).
- Created input and signature files for test cases fc1 to fc5.

docs/process/evidence-suppression-gaps.md

@@ -6,3 +6,4 @@ Use with sprint task 9 (EVIDENCE-PATTERNS-GAPS-300-016) and advisory `30-Nov-202
 - TODO: Unified justification/expiry taxonomy and visibility policy.
 - TODO: Offline evidence-kit packaging plan with signed manifests.
 - TODO: Fixtures and observability metrics to be added; ensure deterministic ordering.
+- TODO: Add `evidence-suppression.schema.json` placeholder and link to Policy/UI modules.

docs/process/evidence-suppression.schema.json

@@ -0,0 +1,13 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "title": "Evidence Suppression (Stub)",
+  "type": "object",
+  "properties": {
+    "evidence_id": {"type": "string"},
+    "suppression_reason": {"type": "string"},
+    "justification": {"type": "string"},
+    "expiry": {"type": "string", "format": "date-time"},
+    "visibility": {"type": "string", "enum": ["private", "tenant", "public"]}
+  },
+  "required": ["evidence_id", "suppression_reason", "visibility"]
+}

docs/process/plugin-architecture-gaps.md

@@ -8,3 +8,4 @@ Use with sprint task 14 (Plugin architecture gaps remediation).
 - TODO: Compatibility matrix and dependency/secret rules.
 - TODO: Signed plugin index with revocation/CVE data (see `tests/plugins/plugin-index.json`).
 - TODO: Determinism harness and fixture plan (see `tests/plugins/README.md`).
+- TODO: Publish `docs/process/plugin-capability-catalog.json` and sign it.

docs/process/plugin-capability-catalog.json

@@ -0,0 +1,15 @@
+{
+  "version": "0.1.0-stub",
+  "capabilities": [
+    {
+      "id": "scan",
+      "resources": {"cpu": "500m", "memory": "256Mi"},
+      "requires_network": false
+    },
+    {
+      "id": "report",
+      "resources": {"cpu": "200m", "memory": "128Mi"},
+      "requires_network": false
+    }
+  ]
+}

docs/process/standup-summary.sample.md

@@ -0,0 +1,9 @@
+# Standup Summary (DSSE-signed) — Sample
+
+- Date (UTC): 2025-12-05
+- Sprint: SPRINT_0300_0001_0001_documentation_process.md
+- Decisions & Risks: no change
+- Blockers: none
+- Next steps: deliver SBOM-VEX kit, finalize fixtures
+
+DSSE signature: <attach dsse envelope here>