feat(omo): retire opencode and move its skills and commands to omo

- Move the vendored skills from .config/opencode/skills to
  .config/omo/skills, with provenance and local changes in its README
- Rewrite Impeccable's script paths to ~/.omo/agent/skills/impeccable so
  its detector and live-server verbs resolve under omo
- frontend-workflow hands screenshots to a visual-engineering task
  instead of opencode run
- Move the notes commands and /impeccable to .config/omo/prompts as omo
  prompt templates; setup-mcp stays behind because it writes
  opencode.json
- Archive DEVELOPMENT-WORKFLOW.md and UI-WORKFLOW.md under
  .config/omo/archive; nothing loads them
- link-ai-configs.sh links the skills into omo and Claude Code only and
  stops linking OpenCode's config, TUI, plugins and workflow docs
- setup-mac.sh and Brewfile.apps stop installing OpenCode; README and
  .withcontextconfig.jsonc follow the new layout

~/.config/opencode/AGENTS.md stays linked: omo's rules engine reads it
before ~/.claude/CLAUDE.md and stops at the first hit, so it carries the
shared preferences and keeps OMC's instructions out of omo.

.config/omo/skills/cold-email/references/personalization.md

@@ -0,0 +1,90 @@
+# Personalization at Scale
+
+Personalization drives **50–250% more replies** (Lavender). The key insight: **if your personalization has nothing to do with the problem you solve, it's just an attention hack** (Clay).
+
+## Four Levels of Personalization
+
+### Level 1 — Basic (merge tags)
+
+First name, company name, job title. Table stakes, no longer differentiating. ~5% lift.
+
+### Level 2 — Industry/segment
+
+Industry-specific pain points, trends, regulatory challenges. Scalable via micro-segmentation.
+
+> Most {{industry}} teams struggle with {{lead gen problem}}, which often leads to wasted effort.
+
+### Level 3 — Role-level
+
+Challenges specific to their role and seniority.
+
+> As Head of Sales, keeping pipeline steady is probably your biggest headache. Your RevOps team is small, so you're likely wearing multiple hats during scaling.
+
+### Level 4 — Individual (gold standard)
+
+Specific, timely observations about that person connected to the problem you solve.
+
+> Noticed you're hiring 3 SDRs. Sounds like you're scaling outbound fast. Most teams hit follow-up fatigue during onboarding.
+
+## Research Signal Stack
+
+| Signal            | Where to find it                   | How to use it                                                                |
+| ----------------- | ---------------------------------- | ---------------------------------------------------------------------------- |
+| Recent funding    | Crunchbase, LinkedIn, press        | "Congrats on Series B. Scaling teams fast usually creates X challenge"      |
+| Job postings      | LinkedIn Jobs, careers page        | "Noticed you're hiring 3 SDRs. Sounds like you're scaling outbound"         |
+| Tech stack        | BuiltWith, Wappalyzer, HG Insights | "I see you're using HubSpot. Most teams at your stage hit a ceiling with X" |
+| LinkedIn activity | Posts, comments, job changes       | "Really enjoyed your post about X"                                           |
+| Company news      | Google News, press releases        | "Congrats on acquiring X. Integrating teams usually creates Y challenge"    |
+| Podcast/talks     | Google, YouTube, podcasts          | "Caught your talk at SaaStr on X. Really insightful"                        |
+| Website changes   | Manual review                      | "Your new pricing page caught my eye. Curious how it's converting"          |
+
+## The 3-Minute Personalization System
+
+From "30 Minutes to President's Club":
+
+**Step 1:** Build a research stack of top 10 buying signals — 5 company triggers, 5 person triggers. Stack-rank by relevance.
+
+**Step 2:** Build a 3x3 template: (1) personalization attached to a problem, (2) problem you solve, (3) one-sentence solution + low-friction CTA.
+
+**Step 3:** Create 5 "trigger templates" — pre-written personalization paragraphs for each trigger, with a smooth segue into the problem.
+
+The personalization must logically connect to the problem. This creates 5 reusable triggers with the rest of the email constant. A top SDR writes a personalized email in **under 3 minutes**.
+
+## The Four -Graphic Principles (Becc Holland)
+
+- **Demographic** — Age, profession, background
+- **Technographic** — Tech stack, tools used
+- **Firmographic** — Company size, funding, industry, growth stage
+- **Psychographic** — Values, passions, beliefs (highest-impact dimension)
+
+Tapping into what prospects are passionate about drives significantly higher response rates.
+
+## Observation-Based Openers (highest performing)
+
+**Trigger-event:** "Congrats on the recent funding round. Scaling the team from here is exciting, and I imagine [challenge] is top of mind."
+
+**Observation:** "Your recent post about [topic] resonated. Especially the part about [detail]. Got me thinking about how that applies to [challenge]."
+
+**Industry insight:** "Most [role titles] I talk to spend [X hours/week] on [problem]. Curious if that matches your experience at [Company]."
+
+## What Feels Fake (avoid)
+
+- AI-generated emails with similar phrasing ("I hope this email finds you well")
+- Generic attention hacks disconnected from problem ("Cool that you went to UCLA!" → pitch)
+- Over-personalizing to creepiness
+- "I saw your LinkedIn profile and wanted to reach out" — signals mass automation
+
+## The "So What?" Test
+
+After writing any opening line, read from prospect's perspective: "So what? Why would I care?" If the answer is nothing, rewrite.
+
+## Personalizing With AI
+
+Agents make Level 4 research affordable at scale, and they make invented personalization just as cheap. Buyers in 2026 spot it fast: praise for the company mission, congratulations on a year-old funding round, "I noticed you're in SaaS."
+
+- **Relevance beats personalization.** A specific trigger, the pain it implies, and a concrete offer outperform a clever personal line attached to a generic pitch.
+- **Facts first, then the angle,** in two separate steps, with a source URL for every fact.
+- **Allow "no hook found."** When research turns up nothing specific, use the segment-level message instead of a manufactured one.
+- **Review before sending** for Tier 1 and a sample of Tier 2.
+
+The full research rules and the account brief template are in the prospecting skill's account research reference.