chore(install): optimize logging, speed, cleanup

- Version logged after [PASS] (not before) across all scripts
- Pre-cache brew package lists with log_info progress
- Read brew version from git describe cache (skip Ruby startup)
- Batch mise use -g calls (single invocation for all tools)
- Replace mise verify step with mise ls --current
- Parallel vim plugin pulls
- Skip donut compile when binary is fresh
- Pre-check macOS defaults before writing (skip fsync when unchanged)
- Pre-check dock state before dockutil calls
- Remove redundant 'already installed' skip logs
- Remove meetingbar and wispr-flow install scripts
- Renumber scripts to fill gaps

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

install.d/75-cmatrix.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+
+# -----------------------------------------------------------------------------
+# Description:
+#   Install cmatrix.
+#
+
+# skip if in Codespaces
+[[ "$DOTS_ENV" == "codespaces" ]] && { log_skip "Codespaces"; return 0; }
+
+if ! command -v cmatrix &> /dev/null; then
+    case "$DOTS_PKG" in
+        apt)
+            sudo apt-get install -qq cmatrix &>/dev/null
+            ;;
+        pacman)
+            sudo pacman -S --noconfirm cmatrix &>/dev/null
+            ;;
+        brew)
+            brew install cmatrix
+            ;;
+        *)
+            log_warn "Skipping cmatrix install: no supported package manager found"
+            ;;
+    esac
+fi
+log_pass "cmatrix installed"
+command -v cmatrix &> /dev/null && cmatrix -V 2>&1 | sed -n '1p' | log_quote