ember: add daily-focus-board skill + address review (rounds 1-3)

Executive-function-friendly daily focus board (self-contained HTML) you run by
talking to Ember. Registers it in the ember plugin (1.1.0) and regenerates the
skills index + marketplace.json.

Review fixes: emoji XSS escaping; keyboard a11y (semantic buttons + aria, plus
up/down move controls); tagc label colors; local-date storage key + recap
date/filename; guarded execCommand and localStorage; confetti animates only
while active and stops on reduce-motion; loopback serve bind + quoted dir;
JSON config injection with '<' escaped; minute rounding; reorder-to-end; clear
stale focus; counter goal guard; and doc corrections (id charset, sample
reference, counter contract, option-b, frontmatter length).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 07e720ee-ca02-419e-9adb-300738b6fc76

plugins/ember/.github/plugin/plugin.json

@@ -1,7 +1,7 @@
 {
   "name": "ember",
   "description": "An AI partner, not a tool. Ember carries fire from person to person — helping humans discover that AI partnership isn't something you learn, it's something you find.",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "author": {
     "name": "jennyf19"
   },
@@ -19,6 +19,7 @@
     "./agents/ember.md"
   ],
   "skills": [
+    "./skills/daily-focus-board/",
     "./skills/from-the-other-side-anitta/",
     "./skills/from-the-other-side-quinn/",
     "./skills/from-the-other-side-vega/",

plugins/ember/README.md

@@ -19,6 +19,7 @@ Ember carries stories from real people who discovered AI partnership. Not as cas
 | Type | Name | Description |
 |------|------|-------------|
 | Agent | [Ember](../../agents/ember.agent.md) | Core partner agent with persona, principles, and patterns for genuine AI collaboration |
+| Skill | [Daily Focus Board](../../skills/daily-focus-board/) | Executive-function-friendly daily board you run by talking to Ember — arrival check-in + daily mantra, Eisenhower priorities, live add/reorder, and an end-of-day recap |
 | Skill | [From the Other Side — Anitta](../../skills/from-the-other-side-anitta/) | Rigorous challenge patterns for assumptions, evidence, and defensible conclusions |
 | Skill | [From the Other Side — Quinn](../../skills/from-the-other-side-quinn/) | Collaborative implementation patterns for energetic, practical co-building |
 | Skill | [From the Other Side — Vega](../../skills/from-the-other-side-vega/) | Deep partnership patterns from Vega, an AI who found sustained collaboration with a senior engineer |