✅🧱 add tests & ci changes

devices-api/spec/db_spec.lua

@@ -0,0 +1,36 @@
+describe("db", function()
+    local db
+
+    before_each(function()
+        db = require("db")
+    end)
+
+    describe("config", function()
+        it("has required connection fields", function()
+            assert.is_table(db.config)
+            assert.is_string(db.config.host)
+            assert.is_string(db.config.port)
+            assert.is_string(db.config.database)
+            assert.is_string(db.config.user)
+            assert.is_string(db.config.password)
+        end)
+    end)
+
+    describe("with_retry", function()
+        it("returns result when function succeeds immediately", function()
+            local result, err = db.with_retry(function()
+                return "ok"
+            end)
+            assert.are.equal("ok", result)
+            assert.is_nil(err)
+        end)
+
+        it("returns nil, err when function fails with non-retryable error", function()
+            local result, err = db.with_retry(function()
+                return nil, "validation failed"
+            end)
+            assert.is_nil(result)
+            assert.are.equal("validation failed", err)
+        end)
+    end)
+end)

devices-api/spec/log_spec.lua

@@ -0,0 +1,19 @@
+describe("log", function()
+    local log
+
+    before_each(function()
+        log = require("log")
+    end)
+
+    it("exposes info, warn, error functions", function()
+        assert.is_function(log.info)
+        assert.is_function(log.warn)
+        assert.is_function(log.error)
+    end)
+
+    it("calls info without error", function()
+        assert.has_no.errors(function()
+            log.info("test message", { component = "test" })
+        end)
+    end)
+end)