Format the rewritten documents with prettier

Re-wraps README.md, docs/ARCHITECTURE.md, docs/DATAMODEL.md,
docs/REPOSTRUCTURE.md and the roadmap in docs/TODO.md with `make fmt`,
which now runs prettier on Markdown. Only line wrapping changes; the
words are those that passed review at 4da102c.

Model: fable-5-1

README.md

@@ -199,12 +199,10 @@ vaultik version
 
 Most commands need these:
 
-- A config file that loads. See [Configuration](#configuration) for the
-  checks.
+- A config file that loads. See [Configuration](#configuration) for the checks.
 - Write access to the local index. The command creates the file, and its
   directory, when they do not exist.
-- For an `rclone://` destination, an rclone config file that defines the
-  remote.
+- For an `rclone://` destination, an rclone config file that defines the remote.
 
 Each command below lists what it needs beyond this.
 
@@ -212,8 +210,8 @@ These commands need less:
 
 - `completion` and `version` need nothing.
 - `config init` needs write access to the config directory.
-- `database delete` needs a config file that loads. It does not open the
-  local index.
+- `database delete` needs a config file that loads. It does not open the local
+  index.
 - These need a config file that exists, even an incomplete one:
     - `config edit`
     - `config get`
@@ -294,8 +292,8 @@ Sets one value in the config file. The key is a dotted path, as in
 - A key that does not exist yet is created. A missing parent becomes a list when
   the next part of the path is a number, and a map otherwise.
 - In a list, the index one past the end appends an entry.
-- The command prints the key it set, and not the value. A refusal for a value
-  of the wrong type quotes the beginning of that value.
+- The command prints the key it set, and not the value. A refusal for a value of
+  the wrong type quotes the beginning of that value.
 - It sets the file's mode to `0600` when group or others could read it.
 
 The command refuses a change that would stop the config from loading. An example
@@ -453,8 +451,8 @@ marker file although the local index holds snapshots.
   when the destination could not be listed.
 
 Under `--json`, every warning above goes to stderr, except the one about a
-snapshot with no manifest at the destination. That snapshot has
-`remote_present` set to `false`.
+snapshot with no manifest at the destination. That snapshot has `remote_present`
+set to `false`.
 
 ### `snapshot verify <snapshot-id>`
 
@@ -786,8 +784,8 @@ It also says when the binary is a development build, not a release.
 The config file is YAML. `vaultik config init` writes one to start from, and
 [`config.example.yml`](config.example.yml) is a longer example.
 
-A command refuses to start when the config does not load. These commands are
-the exceptions:
+A command refuses to start when the config does not load. These commands are the
+exceptions:
 
 - the `config` commands
 - `completion`
@@ -897,8 +895,8 @@ A command that reads the config fails when the path from `--config` or
     - Only the part before the first `.` is used.
 - `index_path`
     - The path of the local index.
-    - Default: `index.sqlite` in the platform data directory. By default that
-      is `~/.local/share/vaultik/` on Linux and
+    - Default: `index.sqlite` in the platform data directory. By default that is
+      `~/.local/share/vaultik/` on Linux and
       `~/Library/Application Support/vaultik/` on macOS.
 
 Sizes take a number of bytes or a unit. `MB` and `GB` are powers of 1000. `MiB`
@@ -1042,9 +1040,9 @@ Commands need these permissions at the destination:
     - `remote nuke`
 - `prune` and `snapshot create --prune` list, read and delete.
 
-An rclone remote that can move objects also needs permission to read and
-delete. An upload there looks up the object it replaces and deletes it. It stops
-when the look-up is refused.
+An rclone remote that can move objects also needs permission to read and delete.
+An upload there looks up the object it replaces and deletes it. It stops when
+the look-up is refused.
 
 `snapshot verify` and `snapshot restore` list only when you give a remote key.
 `snapshot remove --local-only` does not reach the destination.
@@ -1483,8 +1481,8 @@ Each archive holds three files:
 - `LICENSE`
 - `README.md`
 
-The release files are not signed, have no software bill of materials and are
-not built reproducibly.
+The release files are not signed, have no software bill of materials and are not
+built reproducibly.
 
 ## TODO
 
@@ -1496,7 +1494,8 @@ Planned work is listed in [`TODO.md`](TODO.md).
 
 ## author
 
-Made with love and lots of expensive SOTA AI by [sneak](https://sneak.berlin) in Berlin in the summer of 2025.
+Made with love and lots of expensive SOTA AI by [sneak](https://sneak.berlin) in
+Berlin in the summer of 2025.
 
 Released as a free software gift to the world, no strings attached.