* docs: remove unnecessary mini.ai recipe from vimdoc
Problem: the `*pending-mini-ai*` section assumed mini.ai intercepts
buffer-local `at`/`it`/`aC`/`iC` mappings, requiring a manual
`vim.b.miniai_config` workaround.
Solution: remove the section. Neovim's keymap resolver already
prioritizes longer buffer-local mappings over mini.ai's global
`a`/`i` handlers — no recipe needed.
* refactor(icons): unify category/header icon and use checkbox overlays
Problem: `header` and `category` were separate icons for the same
concept. The icon overlay replaced `[ ]` with a bare character,
hiding the markdown checkbox syntax. Header format `## ` produced
a double-space with single-char icons.
Solution: merge `header` into `category` (one icon for both header
lines and EOL labels). Overlay renders `[icon]` preserving bracket
syntax. Change header line format from `## ` to `# ` so the
2-char overlay (`# `) maps cleanly.
* ci: remove empty `assets/` placeholder
* refactor(config): default icons to ascii
Problem: default icons used unicode characters (○, ✓, ●, ▸, ·, ↺)
which render poorly in some terminals and font configurations.
Solution: replace defaults with ascii equivalents (-, x, !, >, ., ~).
Users can still override to unicode or nerd font icons via config.
* ci: ignore library type checking
* feat(config): add icons table with unicode defaults
* feat(buffer): render icon overlays from config.icons
Problem: status characters ([ ], [x], [!]) and metadata prefixes are
hardcoded literals with no user customization.
Solution: read config.icons in apply_extmarks and apply overlay
extmarks for checkboxes/headers, replace hardcoded recur ↺ with
icons.recur, and prefix due/category virt_text with configurable
icon characters.
* feat(plugin): add PendingTab command and <Plug>(pending-tab)
* docs: add icons config, PendingTab recipes, and demo infrastructure
Problem: icon customization and auto-start workflow are undocumented;
no demo asset exists for the README.
Solution: document pending.Icons in vimdoc with nerd font and ASCII
recipes, add PendingTab to commands and mappings, add open-on-startup
recipe, add demo-init.lua and demo.tape for VHS screenshot generation,
add assets/ directory, add README icons section and demo placeholder.
* ci: format
