todays product advirories implemented

docs/modules/cli/guides/commands/vex.md

@@ -5,6 +5,8 @@
 - `stella vex consensus --query <filter> [--output json|ndjson|table] [--offline]`
 - `stella vex get --id <consensusId> [--offline]`
 - `stella vex simulate --input <vexDocs> --policy <policyConfig> [--offline]`
+- `stella vex evidence export <target> [--format json|openvex] [--output <path>]`
+- `stella vex webhooks list|add|remove [--format json]`
 - `stella vex gen --from-drift --image <IMAGE> [--baseline <SEAL_ID>] [--output <PATH>]`
 
 ## Flags (common)
@@ -26,6 +28,39 @@
 
 ---
 
+## stella vex evidence export
+
+Export deterministic VEX evidence for a digest or component identifier.
+
+### Usage
+
+```bash
+stella vex evidence export <target> [--format json|openvex] [--output <path>]
+```
+
+### Examples
+
+```bash
+stella vex evidence export sha256:abc --format json
+stella vex evidence export pkg:npm/lodash@4.17.21 --format openvex --output vex-evidence.json
+```
+
+---
+
+## stella vex webhooks
+
+Manage VEX webhook subscriptions.
+
+### Usage
+
+```bash
+stella vex webhooks list --format json
+stella vex webhooks add --url <url> --events vex.created vex.updated --format json
+stella vex webhooks remove <id> --format json
+```
+
+---
+
 ## stella vex gen --from-drift
 
 **Sprint:** SPRINT_20260105_002_004_CLI