* refactor(oauth): async coroutine support, pure-Lua PKCE, server hardening
Problem: OAuth module shelled out to openssl for PKCE, used blocking
`vim.system():wait()`, had a weak `os.time()` PRNG seed, and the TCP
callback server leaked on read errors with no timeout.
Solution: Add `M.system()` coroutine wrapper and `M.async()` helper,
replace openssl with `vim.fn.sha256` + `vim.base64.encode`, seed from
`vim.uv.hrtime()`, add `close_server()` guard with 120s timeout, and
close the server on read errors.
* fix(gtasks): async operations, error notifications, buffer refresh
Problem: Sync operations blocked the editor, `push_pass` silently
dropped delete/update/create API errors, and the buffer was not
re-rendered after push/pull/sync.
Solution: Wrap `push`, `pull`, `sync` in `oauth.async()`, add
`vim.notify` for all `push_pass` failure paths, and re-render the
pending buffer after each operation.
* fix(init): edit recompute, filter predicates, sync action listing
Problem: `M.edit()` skipped `_recompute_counts()` after saving,
`compute_hidden_ids` lacked `done`/`pending` predicates, and
`run_sync` defaulted to `sync` instead of listing available actions.
Solution: Replace `s:save()` with `_save_and_notify()` in `M.edit()`,
add `done` and `pending` filter predicates, and list backend actions
when no action is specified.
* refactor(gcal): per-category calendars, async push, error notifications
Problem: gcal used a single hardcoded calendar name, ran synchronously
blocking the editor, and silently dropped some API errors.
Solution: Fetch all calendars and map categories to calendars (creating
on demand), wrap push in `oauth.async()`, notify on individual API
failures, track `_gcal_calendar_id` in `_extra`, and remove the `$`
anchor from `next_day` pattern.
* refactor: formatting fixes, config cleanup, health simplification
Problem: Formatter disagreements in `init.lua` and `gtasks.lua`,
stale `calendar` field in gcal config, and redundant health checks
for data directory existence.
Solution: Apply stylua formatting, remove `calendar` field from
`pending.GcalConfig`, drop data-dir and no-file health messages,
add `done`/`pending` to filter tab-completion candidates.
* docs: update vimdoc for sync refactor, remove demo scripts
Problem: Docs still referenced openssl dependency, defaulting to `sync`
action, and the `calendar` config field. Demo scripts used the old
singleton `store` API.
Solution: Update vimdoc and README to reflect explicit actions, per-
category calendars, and pure-Lua PKCE. Remove stale demo scripts and
update sync specs to match new behavior.
* fix(types): correct LuaLS annotations in oauth and gcal
* 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
* ci: cleanup ci script
* 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
