feat: Add tool call normalization and streaming delta accumulation

Adds support for correctly handling tool calls in chat requests. Normalizes tool call data (ensuring IDs, types, and JSON arguments) in non-streaming mode and accumulates OpenAI-style deltas during streaming to build the final Ollama response.

static/index.html

@@ -863,7 +863,7 @@ function renderTimeSeriesChart(timeSeriesData, chart, minutes) {
 
                     const formatUntil = (value) => {
                         if (value === null || value === undefined || value === "") {
-                            return "Forever";
+                            return "∞";
                         }
 
                         let targetTime;