feat(workflows): expand template library from 9 to 22 + multiline string cleanup (#36)

* feat(workflows): add 13 workflow templates across engineering, business, and productivity

Engineering:
- bug-triage: reproduce path → root cause → fix plan
- api-design: resource model → endpoints → OpenAPI spec
- incident-postmortem: timeline → RCA → full postmortem report
- test-generation: code analysis → edge cases → full test suite
- refactor-plan: smell analysis → prioritised opportunities → migration plan

Business:
- competitor-analysis: profiles → SWOT → strategy report
- product-spec: problem definition → user stories → full PRD
- market-research: landscape → segments → research report

Productivity/Thinking:
- meeting-summary: raw notes → structured summary → follow-up email
- decision-matrix: criteria → weighted scoring → recommendation memo
- learning-plan: gap analysis → roadmap → week-1 day-by-day plan
- job-application: job analysis → tailored resume → cover letter → interview prep
- blog-post: research → outline → draft → SEO optimisation

Closes #1912 on librefang/librefang

* fix(workflows): overhaul existing 9 templates

- data-pipeline: redesigned — original 'extract from URL' step was
  broken (LLMs cannot fetch URLs); replaced with paste-data approach
  (profile → clean_transform → analyse) with analysis_goal parameter
- translate-polish: added target_language and register parameters;
  added back-translation step for accuracy verification
- weekly-report: added team/audience parameters, richer extraction
  step, added Metrics and Notes sections
- content-pipeline: added audience/tone parameters, added outline step
  between research and writing
- content-review: fix category 'content' → 'creation'
- customer-support: fix category 'support' → 'business'

* style(workflows): convert all prompt_template strings to TOML multiline syntax

Replace \n escape sequences with real newlines using triple-quote
multiline strings ("""...""") across all 22 workflow templates.
No content changes — formatting only.

* style(hands): replace \n escape in reddit writer format example with multiline code block

workflows/competitor-analysis.toml

@@ -0,0 +1,78 @@
+id = "competitor-analysis"
+name = "Competitor Analysis"
+description = "Research competitors, map their strengths and weaknesses, and produce a strategic positioning report."
+category = "business"
+tags = ["strategy", "market", "competitive", "business"]
+
+[i18n.zh]
+name = "竞品分析"
+description = "调研竞争对手，梳理其优劣势，输出战略定位报告。"
+
+[[parameters]]
+name = "product"
+description = "Your product or business and its target market"
+param_type = "string"
+required = true
+
+[[parameters]]
+name = "competitors"
+description = "List of competitors to analyse (names or URLs)"
+param_type = "string"
+required = true
+
+[[steps]]
+name = "competitor_profiles"
+prompt_template = """
+You are a market analyst. For each competitor listed, create a profile:
+- Core product and value proposition
+- Target customer segment
+- Pricing model and tiers
+- Key features and differentiators
+- Known weaknesses or complaints (from reviews, forums)
+- Go-to-market strategy
+- Estimated market share or traction signals
+
+Our product: {{product}}
+Competitors: {{competitors}}
+"""
+
+[[steps]]
+name = "swot_comparison"
+prompt_template = """
+Perform a comparative SWOT analysis:
+1. For each competitor: their Strengths, Weaknesses, Opportunities they exploit, Threats they face
+2. Our position relative to each on: product depth, pricing, UX, distribution, brand
+3. Whitespace — what pain points do all competitors fail to address?
+
+Competitor profiles:
+{{competitor_profiles}}
+"""
+depends_on = ["competitor_profiles"]
+
+[[steps]]
+name = "strategy_report"
+prompt_template = """
+Write a strategic positioning report:
+
+## Market Landscape
+Summary of the competitive field.
+
+## Our Differentiation
+Where we win, where we are at parity, where we lag.
+
+## Attack Vectors
+3 specific opportunities to take share from each competitor.
+
+## Defensive Priorities
+What strengths to reinforce before competitors close the gap.
+
+## Recommended Positioning Statement
+One sentence that clearly differentiates us from all listed competitors.
+
+## 90-Day Action Items
+Top 5 concrete actions sorted by impact.
+
+SWOT comparison:
+{{swot_comparison}}
+"""
+depends_on = ["swot_comparison"]