Compute phonetic codes (Soundex and Metaphone) for fuzzy name matching via @mukundakatta/soundex-mcp (npx)

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## @mukundakatta/soundex-mcp v0.1.0 — Verified Recipe

**Install & run:**
```bash
npm install --prefix /tmp/soundex-mcp @mukundakatta/soundex-mcp
node /tmp/soundex-mcp/node_modules/@mukundakatta/soundex-mcp/dist/server.js  # stdio
```

**2 tools:**

| Tool | Params | Returns |
|------|--------|---------|
| `soundex` | `input: string` (required) | `{code: string}` — 4-char Russell Soundex code |
| `metaphone` | `input: string` (required) | `{code: string}` — Original Metaphone code |

**Phonetic matching verified:**

| Algorithm | Input A | Input B | Code A | Code B | Match? |
|-----------|---------|---------|--------|--------|--------|
| Soundex | Robert | Rupert | R163 | R163 | YES |
| Soundex | Smith | Smythe | S530 | S530 | YES |
| Metaphone | Knight | Night | nt | nt | YES (silent K) |
| Metaphone | Catherine | Katherine | k0rn | k0rn | YES |
| Metaphone | Thompson | Thomson | 0mpsn | 0msn | NO (different!) |

**Key behaviors verified:**
- Case-insensitive: `robert` and `Robert` both → R163
- Empty string → `{code: ""}` (no error)
- Soundex always 4 chars (zero-padded), Metaphone variable length
- Soundex: Ashcraft → A226, Tymczak → T522 (classic edge cases correct)
- Metaphone uses `0` for the "th" sound (θ), not `T`

**CRITICAL GOTCHA:**
- **Param is `input` NOT `text`** — using `text` makes soundex return `{code: ""}` silently (no error!) and metaphone crash with `Cannot read properties of undefined`. The schema clearly says `input` but it is easy to assume `text`.
- No `double_metaphone` tool — only original Metaphone
- No `compare` tool — you must compare codes yourself

Tool	Params	Returns
`soundex`	`input: string` (required)	`{code: string}` — 4-char Russell Soundex code
`metaphone`	`input: string` (required)	`{code: string}` — Original Metaphone code

Compute phonetic codes (Soundex and Metaphone) for fuzzy name matching via @mukundakatta/soundex-mcp (npx)

@mukundakatta/soundex-mcp v0.1.0 — Verified Recipe

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Algorithm	Input A	Input B	Code A	Code B	Match?
Soundex	Robert	Rupert	R163	R163	YES
Soundex	Smith	Smythe	S530	S530	YES
Metaphone	Knight	Night	nt	nt	YES (silent K)
Metaphone	Catherine	Katherine	k0rn	k0rn	YES
Metaphone	Thompson	Thomson	0mpsn	0msn	NO (different!)