diff --git a/.gitignore b/.gitignore
index 7bfd6f6..77bdab4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@ bun.lock
 *.sqlite-wal
 dist
 coverage
+pi-session*
diff --git a/AGENTS.md b/AGENTS.md
index 14707a2..7c97fae 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -1,5 +1,9 @@
 # Typescript Full Stack App Agent
 
+## Coding Conventions
+- Before planning any code plan, check the `CONTRIBUTING.md` file in the root directory of the project to understand and apply coding conventions for this project
+- Instead of reading and parsing the `CONTRIBUTING.md` every time, cache the findings of `CONTRIBUTING.md` and refer to this cache'd file whenever checking the conventions is required
+
 ## Output Rules
 
 ### Response Style
@@ -176,4 +180,3 @@ Skip `discover_context` for narrow tasks with explicit file targets.
 ### Boundaries
 - Recon is read-only unless user requested implementation.
 - Do not treat scout output as complete when evidence suggests missing files.
-
diff --git a/apps/api/src/orders/order-repository.ts b/apps/api/src/orders/order-repository.ts
index 5a904e1..475e303 100644
--- a/apps/api/src/orders/order-repository.ts
+++ b/apps/api/src/orders/order-repository.ts
@@ -35,13 +35,13 @@ function toOrderItemDetail(row: {
 }
 
 export async function listOrderSummaries(context: DatabaseContext, query?: string) {
-  const search = query?.trim();
+  const search = query?.trim().toLowerCase();
 
   const filters = search
     ? or(
-        sql`instr(${orders.orderNumber}, ${search}) > 0`,
-        sql`instr(${users.name}, ${search}) > 0`,
-        sql`instr(${users.email}, ${search}) > 0`
+        sql`instr(lower(${orders.orderNumber}), ${search}) > 0`,
+        sql`instr(lower(${users.name}), ${search}) > 0`,
+        sql`instr(lower(${users.email}), ${search}) > 0`
       )
     : undefined;