fix: add mistral to MemorySearchSchema provider/fallback unions (#14934)

* fix: add mistral to MemorySearchSchema provider/fallback unions

The Mistral embedding provider was added to the runtime code but the
Zod config schema was not updated, causing config validation to reject
`provider: "mistral"` and `fallback: "mistral"` as invalid input.

* Changelog: add unreleased note for Mistral memory schema fix

---------

Co-authored-by: Drake (Moltbot Dev) <drake@clawd.bot>
Co-authored-by: Vincent Koc <vincentkoc@ieee.org>

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 Docs: https://docs.openclaw.ai
 
+## Unreleased
+
 ## 2026.2.22 (Unreleased)
 
 ### Changes
@@ -29,6 +31,7 @@ Docs: https://docs.openclaw.ai
 
 ### Fixes
 
+- Config/Memory: allow `"mistral"` in `agents.defaults.memorySearch.provider` and `agents.defaults.memorySearch.fallback` schema validation. (#14934) Thanks @ThomsenDrake.
 - Security/Feishu: enforce ID-only allowlist matching for DM/group sender authorization, normalize Feishu ID prefixes during checks, and ignore mutable display names so display-name collisions cannot satisfy allowlist entries. This ships in the next npm release. Thanks @jiseoung for reporting.
 - Feishu/Commands: in group chats, command authorization now falls back to top-level `channels.feishu.allowFrom` when per-group `allowFrom` is not set, so `/command` no longer gets blocked by an unintended empty allowlist. (#23756)
 - Feishu/Plugins: restore bundled Feishu SDK availability for global installs and strip `openclaw: workspace:*` from plugin `devDependencies` during plugin-version sync so npm-installed Feishu plugins do not fail dependency install. (#23611, #23645, #23603)

src/config/zod-schema.agent-runtime.ts

@@ -490,7 +490,13 @@ export const MemorySearchSchema = z
       .strict()
       .optional(),
     provider: z
-      .union([z.literal("openai"), z.literal("local"), z.literal("gemini"), z.literal("voyage")])
+      .union([
+        z.literal("openai"),
+        z.literal("local"),
+        z.literal("gemini"),
+        z.literal("voyage"),
+        z.literal("mistral"),
+      ])
       .optional(),
     remote: z
       .object({
@@ -516,6 +522,7 @@ export const MemorySearchSchema = z
         z.literal("gemini"),
         z.literal("local"),
         z.literal("voyage"),
+        z.literal("mistral"),
         z.literal("none"),
       ])
       .optional(),