refactor(projman): extract skills and consolidate commands

Major refactoring of projman plugin architecture:

Skills Extraction (17 new files):
- Extracted reusable knowledge from commands and agents into skills/
- branch-security, dependency-management, git-workflow, input-detection
- issue-conventions, lessons-learned, mcp-tools-reference, planning-workflow
- progress-tracking, repo-validation, review-checklist, runaway-detection
- setup-workflows, sprint-approval, task-sizing, test-standards, wiki-conventions

Command Consolidation (17 → 12 commands):
- /setup: consolidates initial-setup, project-init, project-sync (--full/--quick/--sync)
- /debug: consolidates debug-report, debug-review (report/review modes)
- /test: consolidates test-check, test-gen (run/gen modes)
- /sprint-status: absorbs sprint-diagram via --diagram flag

Architecture Cleanup:
- Remove plugin-level mcp-servers/ symlinks (6 plugins)
- Remove plugin README.md files (12 files, ~2000 lines)
- Update all documentation to reflect new command structure
- Fix documentation drift in CONFIGURATION.md, COMMANDS-CHEATSHEET.md

Commands are now thin dispatchers (~20-50 lines) that reference skills.
Agents reference skills for domain knowledge instead of inline content.

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

scripts/setup.sh

@@ -91,62 +91,16 @@ setup_shared_mcp() {
     cd "$REPO_ROOT"
 }
 
-# --- Section 2: Verify Symlinks ---
-verify_symlinks() {
-    log_info "Verifying MCP server symlinks..."
+# --- Section 2: Verify MCP Configuration ---
+verify_mcp_config() {
+    log_info "Verifying MCP configuration..."
 
-    # Check projman -> gitea symlink
-    local projman_gitea="$REPO_ROOT/plugins/projman/mcp-servers/gitea"
-    if [[ -L "$projman_gitea" ]]; then
-        log_success "projman/gitea symlink exists"
+    local mcp_json="$REPO_ROOT/.mcp.json"
+    if [[ -f "$mcp_json" ]]; then
+        log_success ".mcp.json exists at repository root"
     else
-        log_error "projman/gitea symlink missing"
-        log_todo "Run: ln -s ../../../mcp-servers/gitea plugins/projman/mcp-servers/gitea"
-    fi
-
-    # Check cmdb-assistant -> netbox symlink
-    local cmdb_netbox="$REPO_ROOT/plugins/cmdb-assistant/mcp-servers/netbox"
-    if [[ -L "$cmdb_netbox" ]]; then
-        log_success "cmdb-assistant/netbox symlink exists"
-    else
-        log_error "cmdb-assistant/netbox symlink missing"
-        log_todo "Run: ln -s ../../../mcp-servers/netbox plugins/cmdb-assistant/mcp-servers/netbox"
-    fi
-
-    # Check pr-review -> gitea symlink
-    local prreview_gitea="$REPO_ROOT/plugins/pr-review/mcp-servers/gitea"
-    if [[ -L "$prreview_gitea" ]]; then
-        log_success "pr-review/gitea symlink exists"
-    else
-        log_error "pr-review/gitea symlink missing"
-        log_todo "Run: ln -s ../../../mcp-servers/gitea plugins/pr-review/mcp-servers/gitea"
-    fi
-
-    # Check data-platform -> data-platform symlink
-    local dataplatform_link="$REPO_ROOT/plugins/data-platform/mcp-servers/data-platform"
-    if [[ -L "$dataplatform_link" ]]; then
-        log_success "data-platform symlink exists"
-    else
-        log_error "data-platform symlink missing"
-        log_todo "Run: ln -s ../../../mcp-servers/data-platform plugins/data-platform/mcp-servers/data-platform"
-    fi
-
-    # Check viz-platform -> viz-platform symlink
-    local vizplatform_link="$REPO_ROOT/plugins/viz-platform/mcp-servers/viz-platform"
-    if [[ -L "$vizplatform_link" ]]; then
-        log_success "viz-platform symlink exists"
-    else
-        log_error "viz-platform symlink missing"
-        log_todo "Run: ln -s ../../../mcp-servers/viz-platform plugins/viz-platform/mcp-servers/viz-platform"
-    fi
-
-    # Check contract-validator -> contract-validator symlink
-    local contractvalidator_link="$REPO_ROOT/plugins/contract-validator/mcp-servers/contract-validator"
-    if [[ -L "$contractvalidator_link" ]]; then
-        log_success "contract-validator symlink exists"
-    else
-        log_error "contract-validator symlink missing"
-        log_todo "Run: ln -s ../../../mcp-servers/contract-validator plugins/contract-validator/mcp-servers/contract-validator"
+        log_error ".mcp.json missing at repository root"
+        log_todo "Create .mcp.json with MCP server configurations"
     fi
 }
 
@@ -335,8 +289,8 @@ main() {
     setup_shared_mcp "viz-platform"
     setup_shared_mcp "contract-validator"
 
-    # Verify symlinks from plugins to shared MCP servers
-    verify_symlinks
+    # Verify MCP configuration at root
+    verify_mcp_config
 
     # Configuration
     setup_config_templates