feat: v3.0.0 architecture overhaul

- Rename marketplace to lm-claude-plugins
- Move MCP servers to root with symlinks
- Add 6 PR tools to Gitea MCP (list_pull_requests, get_pull_request,
  get_pr_diff, get_pr_comments, create_pr_review, add_pr_comment)
- Add clarity-assist plugin (prompt optimization with ND accommodations)
- Add git-flow plugin (workflow automation)
- Add pr-review plugin (multi-agent review with confidence scoring)
- Centralize configuration docs
- Update all documentation for v3.0.0

BREAKING CHANGE: MCP server paths changed, marketplace renamed

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

plugins/clarity-assist/commands/quick-clarify.md

@@ -0,0 +1,84 @@
+# /quick-clarify - Rapid Clarification Mode
+
+## Purpose
+
+Single-pass clarification for requests that are mostly clear but need minor disambiguation.
+
+## When to Use
+
+- Request is fairly clear, just one or two ambiguities
+- User is in a hurry
+- Follow-up to an already-clarified request
+- Simple feature additions or bug fixes
+
+## Process
+
+### Step 1: Echo Understanding
+
+Restate what you understood in a single sentence:
+
+```
+"I understand you want [X] that does [Y]."
+```
+
+### Step 2: Quick Disambiguation
+
+If needed, ask ONE multiple-choice question:
+
+```
+**Just to confirm:** Should this [A] or [B]?
+1. [Option A with brief description]
+2. [Option B with brief description]
+3. Both
+4. Neither / Other approach
+```
+
+### Step 3: Proceed or Confirm
+
+If confident (>90%), proceed with a brief confirmation:
+
+```
+"Got it. I'll implement [X with chosen option]. Starting now."
+```
+
+If less confident, offer a micro-summary:
+
+```
+"Quick summary before I start:
+- [Key point 1]
+- [Key point 2]
+- [Assumption made]
+
+Proceed? (Or clarify anything)"
+```
+
+## Example Interaction
+
+**User:** Add a delete button to the user list
+
+**Quick-Clarify Response:**
+
+```
+I'll add a delete button to each row in the user list.
+
+**Should deletion require confirmation?**
+1. Yes - show confirmation dialog (Recommended)
+2. No - delete immediately
+3. Soft delete - mark as deleted but keep data
+
+[Asking because accidental deletions can be problematic]
+```
+
+## Escalation to Full /clarify
+
+If quick-clarify reveals complexity:
+
+```
+"This is more involved than it first appeared - there are
+several decisions to make. Want me to switch to a more
+thorough clarification process? (Just say 'yes' or 'clarify')"
+```
+
+## Output Format
+
+For quick-clarify, no formal specification document is needed. Just proceed with the task after brief confirmation, documenting assumptions inline with the work.