chore: drop homebrew distribution

The homebrew-tap repo was never created and maintaining a
separate tap for a small tool adds release-pipeline surface
for no real benefit (install.sh and go install cover macos
already). Removed from:

- README.md install section
- .goreleaser.yaml brews block + the release header that
  advertised the brew one-liner
- .github/workflows/release.yml env export for
  HOMEBREW_TAP_TOKEN (no longer consumed)

No other surfaces referenced it. Installers (install.sh /
install.ps1) never mentioned brew.

.github/workflows/release.yml

@@ -95,8 +95,3 @@ jobs:
           # goreleaser reads the tag we just pushed and builds binaries
           # for every (goos, goarch) combination in .goreleaser.yaml.
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          # Optional PAT with `repo` scope for patriceckhart/homebrew-tap.
-          # Always exported (as empty string when the secret is unset)
-          # so the goreleaser template that gates the brew upload on
-          # this value can evaluate without errors.
-          HOMEBREW_TAP_TOKEN: ${{ secrets.HOMEBREW_TAP_TOKEN || '' }}

.goreleaser.yaml

@@ -91,33 +91,4 @@ release:
     curl -fsSL https://raw.githubusercontent.com/patriceckhart/zot/main/install.sh | bash
     ```
 
-    homebrew:
-
-    ```bash
-    brew install patriceckhart/tap/zot
-    ```
-
     or download a binary below, `chmod +x`, and drop it on your `$PATH`.
-
-# Optional: publish a Homebrew formula to a tap repo on every release.
-# Requires the tap repo to exist at github.com/patriceckhart/homebrew-tap
-# and a PAT with `repo` scope exported as `HOMEBREW_TAP_TOKEN` in the
-# release workflow. The skip_upload expression disables the step when
-# the token isn't set, so tag pushes before the tap is created don't
-# fail the whole release.
-brews:
-  - repository:
-      owner: patriceckhart
-      name: homebrew-tap
-      token: "{{ .Env.HOMEBREW_TAP_TOKEN }}"
-    name: zot
-    homepage: https://github.com/patriceckhart/zot
-    description: "lightweight coding agent harness — anthropic + openai, four tools, tui"
-    license: MIT
-    install: |
-      bin.install "zot"
-    test: |
-      system "#{bin}/zot", "--help"
-    # Skip the formula upload when HOMEBREW_TAP_TOKEN is empty. Auto
-    # only skips for prereleases/snapshots, which isn't what we want.
-    skip_upload: '{{ if eq .Env.HOMEBREW_TAP_TOKEN "" }}true{{ else }}false{{ end }}'

README.md

@@ -35,14 +35,6 @@ iwr -useb https://raw.githubusercontent.com/patriceckhart/zot/main/install.ps1 |
 
 Drops `zot.exe` into `$HOME\bin` and adds it to the user PATH if missing. Open a fresh terminal afterwards.
 
-### Homebrew (macOS, Linux)
-
-```bash
-brew install patriceckhart/tap/zot
-```
-
-The tap lives at `patriceckhart/homebrew-tap`.
-
 ### go install
 
 ```bash