fix(cli,skill): unify config source, write SKILL.md, fix TS param parser

[bug-ops]

Summary

• server subcommand reads Claude Desktop config; introspect/generate read ~/.claude/mcp.json — inconsistent config sources #81 — server list/info/validate now read from ~/.claude/mcp.json (same source as introspect/generate). Removes ServerManager and all Claude Desktop config logic. Missing config file returns an empty list instead of an error.
• skill CLI: does not write SKILL.md — outputs JSON context blob with misleading success log #82 — skill CLI writes SKILL.md directly via a new Handlebars template, atomically (temp + rename). Frontmatter values are YAML-quoted. Replaces the misleading JSON context dump + false "Output path" log.
• skill: TypeScript parser extracts "default" and "include" as required param names from description text #83 — TypeScript property parser iterates lines and skips comment-prefix lines; strips inline // ... and /* */ comments (bounded at the first string-literal delimiter to avoid false truncation on URL types). Eliminates default/include false-positive parameters.

Breaking change

skill command stdout shape changed from a raw GenerateSkillResult JSON dump to a SkillWriteResult object (success, output_path, bytes_written, tool_count).

Test plan

• cargo nextest run --workspace --all-features — 639/639 pass
• cargo +nightly fmt --check — clean
• cargo clippy --all-targets --all-features --workspace -- -D warnings — clean
• cargo test --doc --all-features --workspace — 10/10 pass
• server list returns [] when ~/.claude/mcp.json is absent (not an error)
• skill --server <id> writes SKILL.md to ~/.claude/skills/<id>/SKILL.md
• skill --server <id> --format json outputs SkillWriteResult JSON
• Parser: name: string; /* required */ and name: string; // comment both produce param name
• Parser: JSDoc default: and include: tokens do not appear as parameters

Closes #81, #82, #83

[codecov-commenter]

Codecov Report

❌ Patch coverage is 87.46667% with 47 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
crates/mcp-cli/src/commands/server.rs	40.00%	24 Missing ⚠️
crates/mcp-cli/src/commands/common.rs	84.16%	19 Missing ⚠️
crates/mcp-cli/src/commands/skill.rs	93.33%	2 Missing ⚠️
crates/mcp-skill/src/parser.rs	99.04%	1 Missing ⚠️
crates/mcp-skill/src/template.rs	98.70%	1 Missing ⚠️

@@            Coverage Diff             @@
##           master      #92      +/-   ##
==========================================
+ Coverage   89.03%   89.82%   +0.79%     
==========================================
  Files          33       33              
  Lines        7751     7817      +66     
==========================================
+ Hits         6901     7022     +121     
+ Misses        850      795      -55     

Flag	Coverage Δ
mcp-cli	89.82% <87.46%> (+0.79%)	⬆️
mcp-codegen	89.82% <87.46%> (+0.79%)	⬆️
mcp-core	89.82% <87.46%> (+0.79%)	⬆️
mcp-files	89.82% <87.46%> (+0.79%)	⬆️
mcp-introspector	89.82% <87.46%> (+0.79%)	⬆️
mcp-server	89.82% <87.46%> (+0.79%)	⬆️
mcp-skill	89.82% <87.46%> (+0.79%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
crates/mcp-cli/src/commands/introspect.rs	98.95% <100.00%> (+<0.01%)	⬆️
crates/mcp-skill/src/parser.rs	98.09% <99.04%> (+0.12%)	⬆️
crates/mcp-skill/src/template.rs	98.41% <98.70%> (+0.23%)	⬆️
crates/mcp-cli/src/commands/skill.rs	97.97% <93.33%> (-1.18%)	⬇️
crates/mcp-cli/src/commands/common.rs	94.93% <84.16%> (-0.96%)	⬇️
crates/mcp-cli/src/commands/server.rs	41.80% <40.00%> (-8.75%)	⬇️

... and 2 files with indirect coverage changes

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