Add unirate-currency-converter package

packages/unirate-currency-converter/0.1.0/README.md

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+# UniRate Currency Converter
+
+Convert amounts and look up live exchange rates without leaving whatever you're
+typing in. Powered by the [UniRate API](https://unirateapi.com) via the small,
+zero-dependency [`unirate` CLI](https://github.com/UniRate-API/unirate-cli).
+
+## Triggers
+
+| Trigger | What it does | Example output |
+|---|---|---|
+| `:fx` | Opens a form (amount / from / to) and converts | `100 USD = 92.5 EUR` |
+| `:rate` | Opens a form (from / to) and returns the unit rate | `1 USD = 150 JPY` |
+
+Currency codes are the usual ISO-4217 codes (`USD`, `EUR`, `JPY`, `GBP`, …);
+170+ fiat and crypto currencies are supported.
+
+## Setup
+
+This package shells out to the `unirate` CLI, so you need two things:
+
+1. **Install the CLI** — pick one:
+
+   ```bash
+   # macOS (Homebrew)
+   brew install --cask UniRate-API/unirate/unirate
+
+   # Windows (Scoop)
+   scoop bucket add unirate https://github.com/UniRate-API/scoop-unirate
+   scoop install unirate
+
+   # Any platform with a Go toolchain
+   go install github.com/UniRate-API/unirate-cli@latest
+   ```
+
+   Prebuilt binaries for linux/macOS/windows are also attached to each
+   [GitHub release](https://github.com/UniRate-API/unirate-cli/releases).
+
+2. **Set a free API key** — [get one here](https://unirateapi.com) (no credit
+   card), then export it so espanso's shell commands can see it:
+
+   ```bash
+   export UNIRATE_API_KEY="your-api-key"
+   ```
+
+   Put that line in your shell profile (`~/.bashrc`, `~/.zshrc`, or the Windows
+   equivalent) and restart espanso so it inherits the variable.
+
+Verify the CLI works on its own first:
+
+```bash
+unirate convert 100 USD EUR
+# 100 USD = 92.5 EUR
+```
+
+## Notes
+
+- Both triggers are **read-only** — they make an HTTPS GET to the UniRate API
+  and print the result. Nothing is written to or changed on your system.
+- If a trigger expands to nothing, the CLI probably isn't on espanso's PATH or
+  `UNIRATE_API_KEY` isn't set in the environment espanso was launched from.
+
+## License
+
+MIT — see the [`unirate-cli` repository](https://github.com/UniRate-API/unirate-cli).

packages/unirate-currency-converter/0.1.0/_manifest.yml

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+name: "unirate-currency-converter"
+title: "UniRate Currency Converter"
+description: "Convert amounts and look up live exchange rates inline, powered by the UniRate API command-line client."
+version: 0.1.0
+author: UniRate API
+homepage: "https://github.com/UniRate-API/unirate-cli"
+tags: ["currency", "exchange-rate", "forex", "money", "converter", "finance", "unirate"]

packages/unirate-currency-converter/0.1.0/package.yml

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+# UniRate Currency Converter
+#
+# Requires the `unirate` CLI on your PATH and a free UNIRATE_API_KEY in your
+# environment. See the README for setup. Both commands are read-only HTTPS GETs
+# against the UniRate API — they never write to or modify the system.
+
+matches:
+  # Convert an amount between two currencies.
+  #   :fx  ->  form (amount / from / to)  ->  e.g. "100 USD = 92.5 EUR"
+  - trigger: ":fx"
+    replace: "{{result}}"
+    vars:
+      - name: form
+        type: form
+        params:
+          layout: "Convert [[amount]] [[from]] into [[to]]"
+          fields:
+            amount:
+              default: "100"
+            from:
+              default: "USD"
+            to:
+              default: "EUR"
+      - name: result
+        type: shell
+        params:
+          cmd: "unirate convert {{form.amount}} {{form.from}} {{form.to}}"
+          trim: true
+
+  # Look up the live rate for a single currency pair.
+  #   :rate  ->  form (from / to)  ->  e.g. "1 USD = 150 JPY"
+  - trigger: ":rate"
+    replace: "{{result}}"
+    vars:
+      - name: form
+        type: form
+        params:
+          layout: "Exchange rate: 1 [[from]] in [[to]]"
+          fields:
+            from:
+              default: "USD"
+            to:
+              default: "EUR"
+      - name: result
+        type: shell
+        params:
+          cmd: "unirate rate {{form.from}} {{form.to}}"
+          trim: true