Large integers inside style=deepObject struct mashaled as floats

[mgabeler-lee-6rs]

Given a parameter like this:

        - name: foo
          in: query
          style: deepObject
          schema:
            type: object
            properties:
              min:
                type: integer
                format: int64
              max:
                type: integer
                format: int64

The generated client code:

1. Marshals the struct to JSON
2. Parses the JSON back as a map[string]any, resulting in the numbers being converted to float64 -- already not great her I think
3. Constructs the query parameter values using fmt.Sprintf("=%v, ...) resulting in the integer parameter using floating point "e" notation if it's greater than ~ 100000
4. The generated server then refuses to parse values like 1.23454678e9 as not valid string representations of integers

Item 2 happens in MarshalDeepObject:

runtime/deepobject.go

Line 75 in 35e8035

err = json.Unmarshal(buf, &i2)

Item 3 happens just above in marshalDeepObject:

runtime/deepobject.go

Line 58 in 35e8035

prefix + fmt.Sprintf("=%v", t),

I think that, if it has to go through the unfortunate JSON loop, it should use a json.Decoder with UseNumber() applied so that numbers are retained at full fidelity. This is what styleStruct does for other styles:

runtime/styleparam.go

Lines 235 to 236 in 35e8035

	e := json.NewDecoder(bytes.NewReader(buf))
	e.UseNumber()

[mgabeler-lee-6rs]

Submitted #29 which fixes the issue for me locally, using the UseNumber path noted above