feat: initial project setup with implementation plan

- Add PLAN.md with 40-step checklist across 10 phases
- Add CLAUDE.md with project-specific instructions
- Set up nix flake with FastHTML/MonsterUI dependencies
- Create Python package skeleton (src/animaltrack)
- Vendor FastHTML and MonsterUI documentation
- Add Docker build configuration

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docs/vendor/monsterui/api_ref/docs_charts.md

@@ -0,0 +1,75 @@
+# Charts API Reference
+
+MonsterUI supports ApexCharts, a javascript library for rendering different charts like line and pie charts. See the full list of chart types here.
+
+To render a chart you'll need to include the ApexChart js in your app headers like this
+
+`app, rt = fast_app(hdrs=Theme.blue.headers(apex_charts=True))`
+
+Then create an `ApexChart` component as shown in the examples below.
+
+Generally, you should be able to take any chart from the ApexChart docs, convert the chart's options var to a python dict and plug it straight into MonsterUI's ApexChart component.
+
+## Example usage
+
+#### Line chart
+
+See Source
+
+See Output
+
+[code]
+
+    def ex_line_chart():
+        return ApexChart(
+            opts={
+                "chart": {"type":"line", "zoom":{"enabled": False}, "toolbar":{"show":False}},
+                "series": [{"name":"Desktops", "data": [186, 305, 237, 73, 209, 214, 355]}],
+                "xaxis": {"categories":["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul"]}
+            },
+            cls='max-w-md max-h-md'
+        )
+    
+[/code]
+
+#### Pie chart
+
+See Source
+
+See Output
+
+[code]
+
+    def ex_pie_chart():
+        return ApexChart(
+            opts={
+                "chart": {"type":"pie", "zoom":{"enabled": False}, "toolbar":{"show":False}},
+                "series": [186, 305, 237, 73, 209, 214, 355],
+                "labels": ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul"]
+            },
+            cls='max-w-md max-h-md'
+        )
+    
+[/code]
+
+### ApexChart
+
+Source
+
+[code]
+
+    ApexChart(*, opts: Dict, cls: enum.Enum | str | tuple = (), **kws) -> fastcore.xml.FT
+[/code]
+
+> Apex chart component
+
+**Params**
+
+  * `opts` ApexChart options used to render your chart (e.g. {"chart":{"type":"line"}, ...})
+
+  * `cls` Classes for the outer container
+
+  * `kws`
+
+**Returns:** Div(Uk_chart(Script(...)))
+