Remove stale phase/spec references from code comments

Strip "Phase N", "SPEC §X.Y", and "v1.x" planning labels from comments
across the Rust crates and editor layers now that those tracking
artifacts are gone. Comments only — no logic, strings, or test names
touched.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

development/tests/test-keymaps.lua

@@ -123,10 +123,10 @@ vim.defer_fn(function()
   end
   record(true, 'lsp.attached', 'client=' .. client.name)
 
-  -- ===== Documented command surface (doc/nuwiki.txt §5) =====
+  -- ===== Documented command surface =====
   -- Every command must be reachable in BOTH the canonical :Nuwiki* form
   -- and the vimwiki-compatible :Vimwiki* form. The suffixes below are the
-  -- §5 list minus the prefix. :NuwikiInstall is the one exception — a
+  -- command list minus the prefix. :NuwikiInstall is the one exception — a
   -- nuwiki-only maintenance command with no :Vimwiki* alias.
   local both_forms = {
     'Index', 'TabIndex', 'UISelect', 'Goto', 'FollowLink', 'Backlinks',
@@ -169,7 +169,7 @@ vim.defer_fn(function()
     record(ok, 'invoke.next_prev_link_cursor_movement', ok and '' or tostring(err))
   end
 
-  -- ===== Documented mapping surface (doc §6/§7/§8) =====
+  -- ===== Documented mapping surface =====
   -- Every documented mapping must resolve to a buffer-local mapping in
   -- the mode(s) the doc lists it under. `modes` is a string of mode
   -- letters: n/x/o/i. The mouse group is opt-in — the harness enables it
@@ -179,36 +179,36 @@ vim.defer_fn(function()
     return next(d) ~= nil and d.buffer == 1
   end
   local mapping_surface = {
-    -- §6 Links
+    -- Links
     { '<CR>', 'n' }, { '<S-CR>', 'n' }, { '<C-CR>', 'n' }, { '<C-S-CR>', 'n' },
     { '<BS>', 'n' }, { '<Tab>', 'n' }, { '<S-Tab>', 'n' }, { '+', 'nx' },
-    -- §6 Lists
+    -- Lists
     { '<C-Space>', 'nx' }, { '<C-@>', 'nx' }, { '<Nul>', 'nx' },
     { 'gnt', 'n' }, { 'gln', 'nx' }, { 'glp', 'nx' }, { 'glx', 'nx' },
     { 'glh', 'n' }, { 'gll', 'n' }, { 'gLh', 'n' }, { 'gLl', 'n' },
     { 'glr', 'n' }, { 'gLr', 'n' }, { 'gl<Space>', 'n' }, { 'gL<Space>', 'n' },
     { 'o', 'n' }, { 'O', 'n' },
-    -- §6 Headers
+    -- Headers
     { '=', 'n' }, { '-', 'n' }, { ']]', 'n' }, { '[[', 'n' },
     { ']=', 'n' }, { '[=', 'n' }, { ']u', 'n' }, { '[u', 'n' },
-    -- §6 Tables
+    -- Tables
     { 'gqq', 'n' }, { 'gq1', 'n' }, { 'gww', 'n' }, { 'gw1', 'n' },
     { '<A-Left>', 'n' }, { '<A-Right>', 'n' },
-    -- §6 Wiki / diary / export
+    -- Wiki / diary / export
     { '<Leader>ww', 'n' }, { '<Leader>ws', 'n' }, { '<Leader>wi', 'n' },
     { '<Leader>w<Leader>w', 'n' }, { '<Leader>w<Leader>y', 'n' },
     { '<Leader>w<Leader>t', 'n' }, { '<Leader>w<Leader>i', 'n' },
     { '<Leader>wn', 'n' }, { '<Leader>wd', 'n' }, { '<Leader>wr', 'n' },
     { '<Leader>wh', 'n' }, { '<Leader>whh', 'n' }, { '<Leader>wha', 'n' },
     { '<Leader>wc', 'nx' }, { '<C-Down>', 'n' }, { '<C-Up>', 'n' },
-    -- §6 Mouse (opt-in)
+    -- Mouse (opt-in)
     { '<2-LeftMouse>', 'n' }, { '<S-2-LeftMouse>', 'n' }, { '<C-2-LeftMouse>', 'n' },
     { '<MiddleMouse>', 'n' }, { '<RightMouse>', 'n' },
-    -- §7 Text objects (operator-pending + visual)
+    -- Text objects (operator-pending + visual)
     { 'ah', 'ox' }, { 'ih', 'ox' }, { 'aH', 'ox' }, { 'iH', 'ox' },
     { 'al', 'ox' }, { 'il', 'ox' }, { 'a\\', 'ox' }, { 'i\\', 'ox' },
     { 'ac', 'ox' }, { 'ic', 'ox' },
-    -- §8 Insert-mode
+    -- Insert-mode
     { '<CR>', 'i' }, { '<Tab>', 'i' }, { '<S-Tab>', 'i' },
     { '<C-D>', 'i' }, { '<C-T>', 'i' },
     { '<C-L><C-J>', 'i' }, { '<C-L><C-K>', 'i' }, { '<C-L><C-M>', 'i' },
@@ -424,7 +424,7 @@ vim.defer_fn(function()
     wait_ms = 200,
   })
 
-  -- ===== Link helpers (§13.1 Cluster C) =====
+  -- ===== Link helpers (Cluster C) =====
 
   run('links.normalize_via_+', {
     lines = { 'MyPage rest' },