docs: bring all docs up to date after the split/rename

- docs/radials.example.json: the config comments and the launcher-door action
  names were still Ollie-era — 'Copy to .../olliepalette/radials.json' ->
  'deft/radials.json', and ollie_goto_file/ollie_goto_symbol/ollie_command_palette
  -> deft_goto_file/deft_goto_symbol/deft_command_palette (the objectNames the
  radial plugin actually resolves; verified against radialconfig.cpp).
- docs/PLUMBING.md: replaced the dead 'See PLAN.md' pointer with the real
  implementation location (src/plumb/, plumb_lib + plumbplugin).
- README: link docs/radials.example.json from the radial Configure note.
- AGENTS.md: drop the environment-specific LSP-bridge remark (not universal
  contributor guidance); keep the plain 'read before you edit' rule.

PERF.md and SAM.md were already accurate and are unchanged.

AGENTS.md

@@ -56,9 +56,7 @@ cmake --install build               # installs the 6 .so to ~/.local/.../qt6/plu
 - **Match the existing style.** No pointless indirection; file-local helpers
   duplicated across plugins are preferred over a shared lib for a few trivial
   functions.
-- **Never read a file you haven't read, then rewrite from memory.** Use targeted
-  edits. The LSP bridge in this environment is unreliable; prefer the Tree-sitter
-  (`code_*`) and `file_*` tools.
+- **Never rewrite a file from memory.** Read it first, then make targeted edits.
 
 ## Two load-bearing design decisions
 

README.md

@@ -201,7 +201,8 @@ comment, case changes…), so the mouse stays at the text.
 - Slices can trigger any action by name, including `palette`/`switch` doors.
 - **Configure:** drop a `radials.json` at `~/.config/deft/radials.json` to
   replace the built-in tree; when it is absent, empty, or invalid, the built-in
-  default is used.
+  default is used. See [docs/radials.example.json](docs/radials.example.json)
+  for the format.
 
 ### `[deft:nineify] acme` — acme editing gestures
 

docs/PLUMBING.md

@@ -6,8 +6,9 @@ line, or a directory as a folder). The *routing* — what a plumbed string means
 lives in the plumber's rules, not in Kate. This document covers the user-side
 rules in `~/lib/plumbing` that make files and directories open in Kate.
 
-See `PLAN.md` → "Plumbing" for the implementation (the native 9P client, the
-edit-port reader, and the in-process handler).
+The implementation (the native 9P client, the edit-port reader, and the
+in-process handler) lives in `src/plumb/` — `plumb_lib` is the pure codec/9P
+client and `plumbplugin.{h,cpp}` is the Kate glue.
 
 ## How plumbing reaches Kate
 

docs/radials.example.json

@@ -1,7 +1,7 @@
 {
-  "//": "Ollie radial-menu config. Copy to $XDG_CONFIG_HOME/olliepalette/radials.json",
+  "//": "Deft radial-menu config. Copy to $XDG_CONFIG_HOME/deft/radials.json",
   "//trigger": "Each radial may have a key 'trigger' (e.g. \"Alt+R\") and/or a mouse 'button' (\"RightButton\" | \"MiddleButton\").",
-  "//slices": "A slice is a leaf { \"label\", \"action\": <Kate objectName> } or a branch { \"label\", \"slices\": [ ... ] }. The special action \"ollie_command_palette\" opens the M-x palette.",
+  "//slices": "A slice is a leaf { \"label\", \"action\": <Kate objectName> } or a branch { \"label\", \"slices\": [ ... ] }. The special action \"deft_command_palette\" opens the M-x palette.",
   "radials": [
     {
       "name": "edit",
@@ -19,9 +19,9 @@
             { "label": "Align",   "action": "tools_align" },
             { "label": "UPPER",   "action": "tools_uppercase" },
             { "label": "lower",   "action": "tools_lowercase" },
-            { "label": "File…",   "action": "ollie_goto_file" },
-            { "label": "Sym…",    "action": "ollie_goto_symbol" },
-            { "label": "M-x",     "action": "ollie_command_palette" }
+            { "label": "File…",   "action": "deft_goto_file" },
+            { "label": "Sym…",    "action": "deft_goto_symbol" },
+            { "label": "M-x",     "action": "deft_command_palette" }
           ]
         }
       ]