rebrand to notevi: one CLI over the jj sidecar

vr and vrsite become a single binary. vrsite/ folds into a web package in
one module (0x4200.cafe/notevi); "notevi web" serves and exports exactly
what vrsite did, and "notevi read/grep/note/query" is unchanged.

The sidecar is renamed with it: notevi_log, notevi-log.jsonl, and the
description "private: notevi log". The pre-rebrand names are still
recognized, so an old repository opens and reads; it is renamed in place
on the first write, or up front with "notevi migrate DIR...".

That rename cannot be a single mv inside jj run. jj only auto-tracks a
*new* file in the run working copy below a size limit it does not take
from the command line, so writing a whole log under a name the change has
never held is silently dropped while jj reports success. ensureLogFile
creates the file empty first and lets every later byte be a modification
of a tracked file, which snapshots at any size; that also fixes the same
latent bug when importing a large legacy vr-log.jsonl.

Adds a bem-te-vi mark (favicon and nav brand) and a README.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>

1 files changed, 0 insertions, 56 deletions

diff --git a/vrsite/log.go b/vrsite/log.go
deleted file mode 100644
index a0a4f3e..0000000
--- a/vrsite/log.go
+++ /dev/null
@@ -1,56 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"os"
-	"sync"
-)
-
-// logStore is implemented by the production jj sidecar and by the file-backed
-// adapter used in tests. Append's callback makes session note numbering atomic
-// with the content update.
-type logStore interface {
-	Read() ([]byte, error)
-	Generation() (string, error)
-	Append(func(current []byte) ([]byte, error)) error
-	String() string
-}
-
-type fileLog struct {
-	path string
-	mu   sync.Mutex
-}
-
-func newFileLog(path string) *fileLog { return &fileLog{path: path} }
-
-func (l *fileLog) String() string { return l.path }
-
-func (l *fileLog) Read() ([]byte, error) { return os.ReadFile(l.path) }
-
-func (l *fileLog) Generation() (string, error) {
-	info, err := os.Stat(l.path)
-	if err != nil {
-		return "", err
-	}
-	return fmt.Sprintf("%d:%d", info.Size(), info.ModTime().UnixNano()), nil
-}
-
-func (l *fileLog) Append(makePayload func(current []byte) ([]byte, error)) error {
-	l.mu.Lock()
-	defer l.mu.Unlock()
-	current, err := os.ReadFile(l.path)
-	if err != nil && !os.IsNotExist(err) {
-		return err
-	}
-	payload, err := makePayload(current)
-	if err != nil {
-		return err
-	}
-	f, err := os.OpenFile(l.path, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0o644)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-	_, err = f.Write(payload)
-	return err
-}