feat(nvim,alot): full-screen PIM layout + alot Esc bindings

- x now opens a full-screen overlay: alot left (55%), abook top-right,
  calendar bottom-right
- Add esc = exit bindings to alot config for search/thread/taglist/
  bufferlist modes, applied to live ~/.config/alot/config and to the
  mail-notmuch.sh setup script

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

nvim/init.lua

@@ -229,27 +229,26 @@ local function toggle_pim()
         return
     end
 
-    local H     = vim.o.lines - 2
-    local col_w = math.min(vim.o.columns, math.max(90, math.floor(vim.o.columns * 0.45)))
+    -- full-screen: alot left, abook top-right, calendar bottom-right
+    local H       = vim.o.lines - 2
+    local W       = vim.o.columns
+    local left_w  = math.max(1, math.floor(W * 0.55))
+    local right_w = math.max(1, W - left_w)
+    local top_h   = math.max(1, math.floor(H / 2))
+    local bot_h   = math.max(1, H - top_h)
 
-    -- abook gets a fixed 24-line minimum; mail/calendar split the rest 57/43
-    local ab_h   = math.max(24, math.floor(H * 0.30))
-    local rest   = math.max(2,  H - ab_h)
-    local mail_h = math.max(1,  math.floor(rest * 0.57))
-    local cal_h  = math.max(1,  rest - mail_h)
-
-    local w1 = _pim_float(0,               0, mail_h, col_w)
+    local w1 = _pim_float(0,     0,      H,     left_w)
     local ok, err = pcall(vim.cmd, "terminal alot")
     if not ok then _pim_scratch("alot", err) end
 
-    local w2 = _pim_float(mail_h,           0, cal_h,  col_w)
-    ok, err = pcall(vim.cmd, "Calendar -position=here")
-    if not ok then _pim_scratch("calendar.vim", err) end
-
-    local w3 = _pim_float(mail_h + cal_h,   0, ab_h,   col_w)
+    local w2 = _pim_float(0,     left_w, top_h, right_w)
     ok, err = pcall(vim.cmd, "terminal abook")
     if not ok then _pim_scratch("abook", err) end
 
+    local w3 = _pim_float(top_h, left_w, bot_h, right_w)
+    ok, err = pcall(vim.cmd, "Calendar -position=here")
+    if not ok then _pim_scratch("calendar.vim", err) end
+
     _pim_wins = { w1, w2, w3 }
     vim.api.nvim_set_current_win(w1)
 end

setup/modules/optional-Modules/apps/mail-notmuch.sh

@@ -97,6 +97,16 @@ cat > ~/.config/alot/config << EOF
         sendmail_command = msmtp -a main
         sent_box        = maildir://$MAILDIR/Sent
         draft_box       = maildir://$MAILDIR/Drafts
+
+[bindings]
+    [[search]]
+        esc = exit
+    [[thread]]
+        esc = exit
+    [[taglist]]
+        esc = exit
+    [[bufferlist]]
+        esc = exit
 EOF
 
 # ── systemd timer for periodic sync ───────────────────────────────────────────