Fix PM-6279 copilot opportunity skill search

docs/copilot-opportunities.md

@@ -4,6 +4,9 @@
 used by the Opportunities experience. It remains public and returns the legacy
 bare response array. Filtering, total count, stable sorting, offset, and limit
 are performed in PostgreSQL before the selected page's relations are loaded.
+Search and skill predicates normalize legacy `json` and current `jsonb`
+request-data columns to JSONB at query time, so mixed deployment histories use
+the same filtering contract.
 
 ## Query parameters
 

src/api/copilot/copilot-opportunity.service.spec.ts

@@ -352,6 +352,30 @@ describe('CopilotOpportunityService', () => {
     );
   });
 
+  it('casts legacy JSON request data before search and skill JSONB operations', async () => {
+    prismaMock.copilotOpportunity.findMany.mockResolvedValue([baseOpportunity]);
+
+    await service.listOpportunities(
+      {
+        search: 'Cadence SKILL',
+        skills: ['Cadence SKILL'],
+      },
+      regularUser,
+    );
+
+    const sql = prismaMock.$queryRaw.mock.calls[0][0] as Prisma.Sql;
+    expect(sql.text).toContain(
+      "LOWER(COALESCE(r.data::jsonb -> 'skills', '[]'::jsonb)::text)",
+    );
+    expect(sql.text).toContain(
+      "WHEN jsonb_typeof(r.data::jsonb -> 'skills') = 'array'",
+    );
+    expect(sql.text).toContain("THEN r.data::jsonb -> 'skills'");
+    expect(sql.values).toEqual(
+      expect.arrayContaining(['%cadence skill%', 'cadence skill']),
+    );
+  });
+
   it('requires authentication for current-user application filters', async () => {
     await expect(
       service.listOpportunities({ applied: true }, undefined),

src/api/copilot/copilot-opportunity.service.ts

@@ -902,12 +902,14 @@ export class CopilotOpportunityService {
 
     if (filters.search) {
       const pattern = `%${this.escapeLikePattern(filters.search.toLowerCase())}%`;
+      // Some upgraded v5 databases retain this column as `json`; cast before
+      // the JSONB-only skill operations so both physical types are supported.
       conditions.push(Prisma.sql`(
         LOWER(COALESCE(r.data ->> 'opportunityTitle', '')) LIKE ${pattern} ESCAPE E'\\\\'
         OR LOWER(COALESCE(r.data ->> 'overview', '')) LIKE ${pattern} ESCAPE E'\\\\'
         OR LOWER(COALESCE(p.name, '')) LIKE ${pattern} ESCAPE E'\\\\'
         OR LOWER(o.type::text) LIKE ${pattern} ESCAPE E'\\\\'
-        OR LOWER((COALESCE(r.data -> 'skills', '[]'::jsonb))::text) LIKE ${pattern} ESCAPE E'\\\\'
+        OR LOWER(COALESCE(r.data::jsonb -> 'skills', '[]'::jsonb)::text) LIKE ${pattern} ESCAPE E'\\\\'
       )`);
     }
 
@@ -918,8 +920,8 @@ export class CopilotOpportunityService {
           SELECT 1
           FROM jsonb_array_elements(
             CASE
-              WHEN jsonb_typeof(r.data -> 'skills') = 'array'
-                THEN r.data -> 'skills'
+              WHEN jsonb_typeof(r.data::jsonb -> 'skills') = 'array'
+                THEN r.data::jsonb -> 'skills'
               ELSE '[]'::jsonb
             END
           ) AS requested_skill(value)