config + docs/PHASE6: example block + status -> Implement (Phase 6 commit #6)

R9-resolved single-owner of the status bump (commit #5 didn't touch
PHASE6.md per the review fold-in).

config.lua:
  - Commented-out `project = { auto_tree, tree_depth, tree_max_chars }`
    block with the same shape as the Phase 1-5 example blocks.
  - Note that :diff / :tree / :highlight all work without config; the
    `project` block ONLY controls the startup auto-inject.
  - Note about :highlight v1 having no config flag (runtime-only),
    cross-references the in-REPL install hint.

docs/PHASE6.md:
  - Status header bumped: "Plan + review fold-in" -> "Implement"
  - Lists the 6 implement commits in the header for traceability:
      c4fc7fd  context: compose_project plumbing
      d1dce83  _scan_project_tree + :tree + auto_tree hook
      4d5f93a  :diff + _git_clean_cmd (B1 helper)
      0d63f01  expand_mentions @<r1>..<r2> tiered resolution
      11d0e59  tree-sitter highlighter (renderer fence filter +
               highlighted dispatch + :highlight meta)
      this    config example + status bump

Phase 6 implementation is complete. Next inner-loop step is verify
(7) — user-driven smoke tests against the live broker on each pillar
plus filing of issues for any defects, then memory-update (8).

Regression: test_safety 87/87, test_router_model 31/31, repl loads.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

config.lua

@@ -246,4 +246,22 @@ return {
     -- the system prompt as [earlier conversation summary]. Suppressed
     -- in Norris mode (R-C4 — planner stays on its goal). If broker
     -- fails, falls back to Phase 0 silent eviction (no crash).
+
+    -- Phase 6 (docs/PHASE6.md): project file-tree context + :diff /
+    -- :tree / :highlight metas. The :diff and :tree metas work without
+    -- any config. The `project` block below only controls the
+    -- AUTO-injection-at-startup behavior; manual `:tree` always works
+    -- regardless. Uncomment to enable startup auto-inject.
+    --
+    -- project = {
+    --     auto_tree      = true,   -- run `:tree` once at startup
+    --     tree_depth     = 3,      -- depth filter for the scan (find fallback only;
+    --                              -- git ls-files emits full repo-relative paths)
+    --     tree_max_chars = 4096,   -- truncate the injected block above this
+    -- },
+    --
+    -- :highlight has no config flag in v1 — toggled at runtime only.
+    -- Requires the external `tree-sitter` CLI plus configured parser-
+    -- directories with cloned + built `tree-sitter-<lang>` grammars
+    -- (see `:highlight on` for the install hints).
 }

docs/PHASE6.md

@@ -2,7 +2,7 @@
 
 **Project:** aish — AI-augmented conversational shell
 **Document:** Phase 6 Requirements, Architecture & Design Decisions
-**Status:** Plan + review fold-in (tree at `4407029`)
+**Status:** Implement (6 commits landed: c4fc7fd, d1dce83, 4d5f93a, 0d63f01, 11d0e59, this)
 **Date:** 2026-05-16
 
 **Review findings (independent agent, 2026-05-16) — 2 BLOCKERs resolved