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_containers.md

@@ -0,0 +1,167 @@
+# Articles, Containers & Sections API Reference
+
+### ArticleMeta
+
+Source
+
+[code]
+
+    ArticleMeta(*c, cls=(), **kwargs) -> fastcore.xml.FT
+[/code]
+
+> A metadata component for use within an Article showing things like date, author etc
+
+**Params**
+
+  * `c` contents of ArticleMeta tag (often other tags)
+
+  * `cls` Classes in addition to ArticleMeta styling
+
+  * `kwargs`
+
+**Returns:** P(..., cls='uk-article-meta')
+
+### ArticleTitle
+
+Source
+
+[code]
+
+    ArticleTitle(*c, cls=(), **kwargs) -> fastcore.xml.FT
+[/code]
+
+> A title component for use within an Article
+
+**Params**
+
+  * `c` contents of ArticleTitle tag (often other tags)
+
+  * `cls` Classes in addition to ArticleTitle styling
+
+  * `kwargs`
+
+**Returns:** H1(..., cls='uk-article-title')
+
+### Article
+
+Source
+
+[code]
+
+    Article(*c, cls=(), **kwargs) -> fastcore.xml.FT
+[/code]
+
+> A styled article container for blog posts or similar content
+
+**Params**
+
+  * `c` contents of Article tag (often other tags)
+
+  * `cls` Classes in addition to Article styling
+
+  * `kwargs`
+
+**Returns:** Article(..., cls='uk-article')
+
+See Source
+
+See Output
+
+# Sample Article Title
+
+By: John Doe
+
+lorem ipsum dolor sit amet consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
+
+[code]
+
+    def ex_articles():
+        return Article(
+            ArticleTitle("Sample Article Title"), 
+            Subtitle("By: John Doe"),
+            P('lorem ipsum dolor sit amet consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.'))
+    
+[/code]
+
+### Container
+
+Source
+
+[code]
+
+    Container(*c, cls=('mt-5', <ContainerT.xl: 'uk-container-xl'>), **kwargs) -> fastcore.xml.FT
+[/code]
+
+> Div to be used as a container that often wraps large sections or a page of content
+
+**Params**
+
+  * `c` Contents of Container tag (often other FT Components)
+
+  * `cls` Classes in addition to Container styling
+
+  * `kwargs`
+
+**Returns:** Container(..., cls='uk-container')
+
+* * *
+
+### ContainerT
+
+_Max width container sizes from https://franken-ui.dev/docs/container_
+
+Option | Value | Option | Value  
+---|---|---|---  
+xs | uk-container-xs | sm | uk-container-sm  
+lg | uk-container-lg | xl | uk-container-xl  
+expand | uk-container-expand |  |   
+  
+See Source
+
+See Output
+
+This is a sample container with custom styling.
+
+[code]
+
+    def ex_containers():
+        return Container(
+            "This is a sample container with custom styling.",
+            cls=ContainerT.xs,
+            style="background-color: #FFA500; color: #000000")
+    
+[/code]
+
+### Section
+
+Source
+
+[code]
+
+    Section(*c, cls=(), **kwargs) -> fastcore.xml.FT
+[/code]
+
+> Section with styling and margins
+
+**Params**
+
+  * `c` contents of Section tag (often other tags)
+
+  * `cls` Classes in addition to Section styling
+
+  * `kwargs`
+
+**Returns:** Div(..., cls='uk-section')
+
+* * *
+
+### SectionT
+
+_Section styles from https://franken-ui.dev/docs/section_
+
+Option | Value | Option | Value | Option | Value  
+---|---|---|---|---|---  
+default | uk-section-default | muted | uk-section-muted | primary | uk-section-primary  
+secondary | uk-section-secondary | xs | uk-section-xsmall | sm | uk-section-small  
+lg | uk-section-large | xl | uk-section-xlarge | remove_vertical | uk-section-remove-vertical
+