List only after-1.0 work in the README roadmap (closes #208)

The README roadmap and the TODO.md Next Step still described finished
1.0 work as remaining. The roadmap now lists only work planned after
1.0. Its security item says the code was reviewed before 1.0, every bug
found was fixed, and the accepted risks are listed; an outside audit
stays as after-1.0 work. The error-condition item is gone because every
failure case it listed has a fault-injection test. Daemon mode is added.
TODO.md says the 1.0 work is complete on next and that merging and
tagging are the owner's.

Judgement call: dropped the human-readable size flags item; no command
flag takes a raw-integer size.

Model: opus-5-5

README.md

@@ -577,22 +577,18 @@ complete annotated example also lives in
 
 ## roadmap
 
-Items still to do before / shortly after 1.0. Loosely ordered by
-priority.
+Work planned after 1.0. Loosely ordered by priority.
 
 ### correctness and operability
 
-* **Security audit of the encryption implementation.** Pre-1.0
-  blocker if we're advertising "secure" at the top of this README.
-  age + zstd + content-defined chunking is mostly off-the-shelf
-  pieces, but the seams (key handling, recipient parsing, manifest
-  trust boundary, restore-time identity validation) need an outside
-  read.
-* **Error-condition tests.** Today's coverage is the happy path
-  plus a few specific regressions. Need fault-injection coverage:
-  network failures mid-blob, disk-full during restore, corrupted /
-  truncated / missing blobs, partial uploads, kill -9 between
-  manifest and db.zst.age writes.
+* **Outside security audit.** Before 1.0 the encryption and
+  blob-generation code was reviewed: every bug the review found was
+  fixed, and the risks it accepted are listed in
+  [Accepted Risks](docs/REPOSTRUCTURE.md#accepted-risks). No outside
+  audit has been done. age + zstd + content-defined chunking
+  is mostly off-the-shelf pieces, but the seams (key handling,
+  recipient parsing, manifest trust boundary, restore-time identity
+  validation) need an outside read.
 * **Verify restored content end-to-end in CI.** The current
   integration test does this for a small synthetic snapshot but
   not at scale. A nightly job against a multi-GB representative
@@ -615,13 +611,15 @@ priority.
   doesn't resume from where it stopped or skip already-present
   files. A `--resume` mode that checks targets before fetching
   blobs would matter for very large restores.
+* **Daemon mode.** A long-running mode that watches for file
+  changes so frequent backups, such as hourly, skip the full scan.
+  It adds little for the usual runs from cron every 12 to 36 hours.
+  See [issue #204](https://git.eeqj.de/sneak/vaultik/issues/204).
 
 ### usability
 
 * **Man pages and richer `--help` examples.** Cobra generates
   basic help; man pages would be a separate target.
-* **`--bwlimit` style human-readable size flags** across the
-  command surface where they're currently raw integers.
 * **`vaultik snapshot diff <a> <b>`** — show which files changed
   between two snapshots without restoring either.
 * **Status reporting hook for `--cron`.** When a backup fails