Flatten the 9P control tree and move it out of fs.zig

The served tree loses the self/ level: /index /ctl /new /log /screen
/listeners /pane/<n>/... /os, with /src only in -Dembed-sources=true builds
(default off, on for esp32p4). ctl speaks the editor's own language with two
lowercase verbs, look TEXT and exec TEXT, plus acme's addr verbs; the new/
factory directory becomes one clone file; cons is gone (exec Msg); name and
sel are files; stats report real lengths, modes and mtimes; /log streams
pane new/del/rename/save events. The tree code lives in src/ninep/
(tree, pane, ctl, addr, pty, events, screen, sources); fs.zig keeps host
access, mounts, resolution and find/grep. Same engine and transports.
README (fs-help.txt) and docs rewritten; tests updated and extended.

Co-Authored-By: Claude Fable 5.1 <[email protected]>

1 files changed, 13 insertions, 13 deletions

diff --git a/test/appearance_gallery.py b/test/appearance_gallery.py
index 7779efa9..0fa12136 100644
--- a/test/appearance_gallery.py
+++ b/test/appearance_gallery.py
@@ -80,21 +80,21 @@ def run(args):
         before = set(panes(client))
         command(client, source, 'Newcol')
         right = require(wait_for(lambda: next((s for s in panes(client) if s not in before), None)), 'right column missing')
-        client.write(f'/self/pane/{right}/ctl', f'name {root / "Review"}\n'.encode())
-        client.write(f'/self/pane/{right}/body', PREFERENCE_NOTES if args.theme_selector else NOTES, truncate=True)
-        client.write(f'/self/pane/{right}/ctl', b'clean\n')
+        client.write(f'/pane/{right}/name', f'{root / "Review"}\n'.encode())
+        client.write(f'/pane/{right}/body', PREFERENCE_NOTES if args.theme_selector else NOTES, truncate=True)
+        client.write(f'/pane/{right}/ctl', b'clean\n')
         before = set(panes(client))
         command(client, right, 'Tty')
         terminal = require(wait_for(lambda: next((s for s in panes(client) if s not in before), None)), 'terminal missing')
-        client.write(f'/self/pane/{terminal}/pty/data', b"PS1='$ '; printf '\\033[2J\\033[H\\033[1;36mPardes workspace\\033[0m\\n\\n'; printf 'Agave source: read-only\\nTerminal: ready\\n\\n'; printf '\\033[32mSmall touches. Same workflow.\\033[0m\\n'\r")
-        require(wait_for(lambda: b'Small touches. Same workflow.' in client.read(f'/self/pane/{terminal}/body')), 'terminal output missing')
+        client.write(f'/pane/{terminal}/pty/data', b"PS1='$ '; printf '\\033[2J\\033[H\\033[1;36mPardes workspace\\033[0m\\n\\n'; printf 'Agave source: read-only\\nTerminal: ready\\n\\n'; printf '\\033[32mSmall touches. Same workflow.\\033[0m\\n'\r")
+        require(wait_for(lambda: b'Small touches. Same workflow.' in client.read(f'/pane/{terminal}/body')), 'terminal output missing')
 
         def config_report():
             before = set(panes(client))
             command(client, right, 'Config')
             pane = require(wait_for(lambda: next((s for s in panes(client) if s not in before), None)), 'Config output missing')
-            text = client.read(f'/self/pane/{pane}/body').decode()
-            client.write(f'/self/pane/{pane}/ctl', b'del\n')
+            text = client.read(f'/pane/{pane}/body').decode()
+            client.write(f'/pane/{pane}/ctl', b'exec Del\n')
             return text
 
         settings = config_report()
@@ -135,7 +135,7 @@ def run(args):
             command(client, right, 'Theme ' + theme)
             if args.theme_selector:
                 # Keep both quiet active gutter ink and vivid comments in view.
-                client.write(f'/self/pane/{source}/ctl', f'look {source_path}:117\n'.encode())
+                client.write(f'/pane/{source}/ctl', f'look {source_path}:117\n'.encode())
             take_frame('classic-' + theme)
             if args.theme_selector:
                 frame = client.screen()
@@ -162,7 +162,7 @@ def run(args):
             command(client, right, 'ThemeSel')
             selector = require(wait_for(lambda: next((s for s in panes(client) if s not in before), None)),
                                'ThemeSel missing')
-            body = client.read(f'/self/pane/{selector}/body').decode()
+            body = client.read(f'/pane/{selector}/body').decode()
             native, legacy = body.split('# Legacy and imported themes', 1)
             for theme in ('forge_black', 'forge_soft', 'orchard_black'):
                 require('Theme ' + theme + '\n' in native, 'native contrast variant below legacy heading')
@@ -171,14 +171,14 @@ def run(args):
                     'ThemeSel did not open at native first entry')
             take_frame('theme-selector')
             report['native_themes_first'] = True
-            client.write(f'/self/pane/{selector}/ctl', b'del\n')
+            client.write(f'/pane/{selector}/ctl', b'exec Del\n')
             command(client, terminal, 'Collapse')
         for pet in (() if args.skip_pets else ('cat', 'frog', 'off')):
             command(client, right, 'Pet ' + pet)
             settings = config_report()
             require('Pet: ' + pet + '\n' in settings, 'pet setting not applied')
             # Returning focus to the source closes all transient report state.
-            client.write(f'/self/pane/{source}/ctl', f'look {source_path}:1\n'.encode())
+            client.write(f'/pane/{source}/ctl', f'look {source_path}:1\n'.encode())
             take_frame('pet-' + pet)
             if pet != 'off':
                 frame = client.screen()
@@ -194,9 +194,9 @@ def run(args):
                 require(band_digest('pet-' + pet) != band_digest('pet-' + pet + '-later'),
                         'pet did not animate in workspace tag')
             report['pets'].append(pet)
-        require(client.read(f'/self/pane/{source}/body') == original == source_path.read_bytes(), 'Agave source changed')
+        require(client.read(f'/pane/{source}/body') == original == source_path.read_bytes(), 'Agave source changed')
         report['source_unchanged'] = True
-        client.write(f'/self/pane/{terminal}/pty/data', b'exit\r')
+        client.write(f'/pane/{terminal}/pty/data', b'exit\r')
     (root / 'report.json').write_text(json.dumps(report, indent=2))
     print(json.dumps(report, indent=2))