fix: __version__ hardcoded to 0.1.0, drifted from pyproject 0.1.1

__init__.py:14 hardcoded "0.1.0" while pyproject.toml, the README
install pin, and the README changelog all said 0.1.1 - a consumer
gating on __version__ read one release behind the actual tag. Derive
__version__ from installed package metadata
(importlib.metadata.version("dpy_cache")) so the hardcoded literal
can no longer drift from the release tag; keep a fallback literal for
the not-installed/editable case, synced to the current pyproject
version.

Bump 0.1.1 -> 0.1.2.

Signed-off-by: disqualifier <dev@disqualifier.me>

README.md

@@ -9,7 +9,7 @@ bites you.
 ## Install
 
 ```
-dpy_cache @ git+ssh://git@git.rethinkstudios.io/rethink-public/dpy_cache.git@v0.1.1
+dpy_cache @ git+ssh://git@git.rethinkstudios.io/rethink-public/dpy_cache.git@v0.1.2
 ```
 
 ## Usage
@@ -103,6 +103,14 @@ one, a `discord.File` source that can't be safely rebuilt for a repeat send). Un
 Tagged `vX.Y.Z`; pin a tag in your install line. Targets `discord.py>=2.0` (not
 `discord.py-self`).
 
+### v0.1.2
+
+- `__version__` is now derived from installed package metadata
+  (`importlib.metadata.version("dpy_cache")`) instead of a hardcoded string, so it can
+  no longer drift from the `pyproject.toml` version that the release tag is cut from. A
+  not-installed/editable checkout falls back to a literal that is kept in sync with the
+  current `pyproject.toml` version at each release.
+
 ### v0.1.1
 
 - `cache()` now rejects a duplicate filename in a **list** input with `DPYCacheError`

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "dpy_cache"
-version = "0.1.1"
+version = "0.1.2"
 description = "Persist images/files to a Discord storage channel and get durable, re-resolvable CDN references — config-free, injectable, installable."
 requires-python = ">=3.10"
 dependencies = [

src/dpy_cache/__init__.py

@@ -2,6 +2,8 @@
 
 see :mod:`dpy_cache.dpy_cache` for the full module docstring, api, and error contract
 """
+from importlib.metadata import PackageNotFoundError, version
+
 from .dpy_cache import (
     MAX_ATTACHMENTS_PER_MESSAGE,
     CacheResult,
@@ -11,7 +13,10 @@ from .dpy_cache import (
     FileRef,
 )
 
-__version__ = "0.1.0"
+try:
+    __version__ = version("dpy_cache")
+except PackageNotFoundError:
+    __version__ = "0.1.2"
 
 __all__ = [
     "DPYCache",