Add documentation page using DevSeed's mkdocs format (#19)

* Add devseed mkdocs basic template
* Add docs GitHub Actions CI workflow
* Add placeholder for tools & agents
* Add mkdocstrings to automatically create documentation from code
* Fix RUF022 `__all__` is not sorted
* Deploy to GitHub Pages from artifacts

Also move permissions from workflow-level to job-level.

---------

Co-authored-by: Wei Ji <23487320+weiji14@users.noreply.github.com>

mkdocs.yml

@@ -0,0 +1,129 @@
+site_name: Geo Assistant
+repo_name: developmentseed/geo-assistant
+repo_url: https://github.com/developmentseed/geo-assistant
+site_description: Geo Assistant
+site_author: Development Seed
+# Note: trailing slash recommended with mike:
+# https://squidfunk.github.io/mkdocs-material/setup/setting-up-versioning/#publishing-a-new-version
+site_url: https://developmentseed.org/geo-assistant/
+docs_dir: docs
+
+extra:
+  social:
+    - icon: "fontawesome/brands/github"
+      link: "https://github.com/developmentseed"
+    - icon: "fontawesome/brands/bluesky"
+      link: "https://bsky.app/profile/developmentseed.org"
+    - icon: "fontawesome/brands/linkedin"
+      link: "https://www.linkedin.com/company/development-seed"
+  version:
+    alias: true
+    provider: mike
+
+nav:
+  - Home: index.md
+  - Tools: tools/index.md
+  - Agents: agents/index.md
+
+watch:
+  - docs
+
+theme:
+  language: en
+  name: material
+  custom_dir: docs/overrides
+  logo: assets/logo_no_text.png
+  palette:
+    # Palette toggle for automatic mode
+    - media: "(prefers-color-scheme)"
+      toggle:
+        icon: material/brightness-auto
+        name: Switch to light mode
+
+    # Palette toggle for light mode
+    - media: "(prefers-color-scheme: light)"
+      primary: default
+      accent: deep orange
+      toggle:
+        icon: material/brightness-7
+        name: Switch to dark mode
+
+    # Palette toggle for dark mode
+    - media: "(prefers-color-scheme: dark)"
+      scheme: slate
+      primary: default
+      accent: deep orange
+      toggle:
+        icon: material/brightness-4
+        name: Switch to system preference
+
+  font:
+    text: Roboto
+    code: Roboto Mono
+
+  features:
+    - content.code.annotate
+    - content.code.copy
+    - navigation.indexes
+    - navigation.instant
+    - navigation.tracking
+    - search.suggest
+    - search.share
+
+extra_css:
+  - overrides/stylesheets/extra.css
+
+plugins:
+  - search
+  - social:
+      enabled: !ENV [CI, false]
+  - mike:
+      alias_type: "copy"
+      canonical_version: "latest"
+  - mkdocstrings:
+      enable_inventory: true
+      handlers:
+        python:
+          options:
+            docstring_section_style: list
+            docstring_style: google
+            line_length: 80
+            separate_signature: true
+            show_source: true
+            show_root_heading: true
+            show_signature_annotations: true
+            show_symbol_type_toc: true
+            signature_crossrefs: true
+            # extensions:
+            #   - griffe_inherited_docstrings
+
+# https://github.com/developmentseed/titiler/blob/50934c929cca2fa8d3c408d239015f8da429c6a8/docs/mkdocs.yml#L115-L140
+markdown_extensions:
+  - admonition
+  - attr_list
+  - codehilite:
+      guess_lang: false
+  - def_list
+  - footnotes
+  - md_in_html
+  - pymdownx.arithmatex
+  - pymdownx.betterem
+  - pymdownx.caret:
+      insert: false
+  - pymdownx.details
+  - pymdownx.emoji:
+      emoji_index: !!python/name:material.extensions.emoji.twemoji
+      emoji_generator: !!python/name:material.extensions.emoji.to_svg
+  - pymdownx.escapeall:
+      hardbreak: true
+      nbsp: true
+  - pymdownx.magiclink:
+      hide_protocol: true
+      repo_url_shortener: true
+  - pymdownx.smartsymbols
+  - pymdownx.superfences
+  - pymdownx.tasklist:
+      custom_checkbox: true
+  - pymdownx.tilde
+  - toc:
+      permalink: true