Install pages: Gitea-release URLs while PyPI publish is pending

quickstart:
  - 'pip install omni-pca' -> pip install from git+https at the v2026.5.10 tag
  - uvx --from form documented for no-install runs
  - note callout that PyPI publish is pending and what to switch to once it lands

install-in-home-assistant:
  - Common errors table: replace generic 'check internet' fix with a
    concrete pre-install command using the release wheel URL
  - Known gaps: same wheel install command shown inline with HA-OS hint

Build clean, 23 pages.

src/content/docs/how-to/install-in-home-assistant.md

@@ -123,7 +123,7 @@ Optional polish:
 | *Failed to connect* | TCP refused or timed out | See [no entities](#the-integration-loads-but-no-entities-appear). |
 | *Invalid authentication* | ControllerKey wrong or panel rejected the secure handshake | Double-check the 32 hex chars, no spaces, lowercase or uppercase both fine. Re-extract via [find ControllerKey](/how-to/find-controller-key/). |
 | *Already configured* | You added the same `host:port` twice | Remove the existing entry first; HA enforces unique-per-host. |
-| *Unable to install requirement omni-pca==2026.5.10* | HA can't reach PyPI to install the wire-protocol library | Check internet connectivity from HA. If on a restricted network, pre-install the wheel manually (see project README). |
+| *Unable to install requirement omni-pca==2026.5.10* | HA can't fetch the wire-protocol library | Until PyPI publish lands, pre-install the wheel into HA's Python with `pip install https://git.supported.systems/warehack.ing/omni-pca/releases/download/v2026.5.10/omni_pca-2026.5.10-py3-none-any.whl`, then restart HA. |
 
 ## The integration loads but no entities appear
 
@@ -170,8 +170,16 @@ No restart needed.
   custom-repository workflow above (or path B) until then.
 - The library `omni-pca` is **not yet on PyPI**. HA's
   `manifest.json` requires `omni-pca==2026.5.10`; that resolves once
-  publish lands. Until then, install the wheel manually.
+  publish lands. Until then, manually pre-install the wheel into HA's
+  Python:
+
+  ```bash
+  pip install https://git.supported.systems/warehack.ing/omni-pca/releases/download/v2026.5.10/omni_pca-2026.5.10-py3-none-any.whl
+  ```
+
+  HA OS users: drop into the SSH/Web add-on shell or use the *Advanced
+  SSH & Web Terminal* add-on first.
 - Live-panel validation against a real Omni Pro II is in progress.
   Mock-panel coverage is comprehensive (351 tests), but a real-world
-  bug-bash hasn't happened yet. Report anything weird via GitHub
+  bug-bash hasn't happened yet. Report anything weird as a Gitea issue
-  issues with a [diagnostics download](#verify-it-loaded).
+  with a [diagnostics download](#verify-it-loaded).

src/content/docs/start/quickstart.md

@@ -15,19 +15,32 @@ the encrypted `.pca` blob. No panel hardware required — the file already
 contains everything you need.
 
 ```bash
-pip install omni-pca
+# omni-pca isn't on PyPI yet — install from the Gitea release:
-# or, no install:
+pip install "omni-pca @ git+https://git.supported.systems/warehack.ing/omni-pca.git@v2026.5.10"
-uvx omni-pca decode-pca '/path/to/Your.pca' --field controller_key
+
+omni-pca decode-pca '/path/to/Your.pca' --field controller_key
+```
+
+Or, with no permanent install:
+
+```bash
+uvx --from "git+https://git.supported.systems/warehack.ing/omni-pca.git@v2026.5.10" \
+    omni-pca decode-pca '/path/to/Your.pca' --field controller_key
 ```
 
 Other useful fields:
 
 ```bash
-uvx omni-pca decode-pca '/path/to/Your.pca' --field host
+omni-pca decode-pca '/path/to/Your.pca' --field host
-uvx omni-pca decode-pca '/path/to/Your.pca' --field port
+omni-pca decode-pca '/path/to/Your.pca' --field port
-uvx omni-pca decode-pca '/path/to/Your.pca' --include-pii   # full dump, with account info
+omni-pca decode-pca '/path/to/Your.pca' --include-pii   # full dump, with account info
 ```
 
+:::note[PyPI publish is pending]
+Once `omni-pca` lands on PyPI the install collapses to `pip install omni-pca`
+or `uvx omni-pca ...`. Until then, the git-URL form above is the way.
+:::
+
 :::caution[The decrypted `.pca` plaintext contains PII]
 Account name, address, phone number, and (commonly) factory-default user
 codes all live in the file in plaintext after decryption. The CLI redacts